Caddy 2

hardened latest
Full version: 2 Analyzed: 2026-02-10
Size Reduction -62% 59.2 MB to 95.9 MB (-36.6 MB saved)
Component Reduction 6% 162 to 152 packages (10 removed)
Vulnerability Reduction 44% 41 to 23 vulnerabilities (18 eliminated)

Image Comparison

Propertyupstreamhardened
Imagedocker.io/library/caddy:2.10.2ghcr.io/armorred/caddy:2-hardened
Size59.2 MB95.9 MB
Layers514
Components162152
Vulnerabilities4123
Runtime Userroot999:999

Vulnerability Analysis

upstream 41 total
2critical
4high
12medium
2low
hardened 23 total
2critical
3high
10medium
Upstream vulnerability details (41)
CVE IDSeverityPackageVersionFixed In
ALPINE-CVE-2024-58251lowbusybox1.37.0-r201.36.1-r21
ALPINE-CVE-2025-46394lowbusybox1.37.0-r201.36.1-r21
ALPINE-CVE-2025-10148mediumcurl8.14.1-r28.14.1-r2
ALPINE-CVE-2025-10966mediumcurl8.14.1-r28.17.0-r0
ALPINE-CVE-2025-9086highcurl8.14.1-r28.14.1-r2
GO-2026-4316unknowngithub.com/go-chi/chi/v5v5.2.25.2.4
GO-2025-4017highgithub.com/quic-go/quic-gov0.54.00.49.1
GO-2025-4233mediumgithub.com/quic-go/quic-gov0.54.00.57.0
GHSA-47m2-4cr7-mhcwhighgithub.com/quic-go/quic-gov0.54.00.49.1
GHSA-g754-hx8w-x2g6mediumgithub.com/quic-go/quic-gov0.54.00.57.0
GO-2025-4068mediumgithub.com/slackhq/nebulav1.9.51.9.7
GHSA-69x3-g4r3-p962highgithub.com/slackhq/nebulav1.9.51.10.3
GHSA-x6fh-7qmf-69xhmediumgithub.com/slackhq/nebulav1.9.51.9.7
GO-2025-4180criticalgithub.com/smallstep/certificatesv0.28.40.29.0
GO-2025-4181mediumgithub.com/smallstep/certificatesv0.28.40.29.0
GHSA-h8cp-697h-8c8pcriticalgithub.com/smallstep/certificatesv0.28.40.29.0
GHSA-j7c9-79x7-8hprmediumgithub.com/smallstep/certificatesv0.28.40.29.0
GO-2025-4116unknowngolang.org/x/cryptov0.40.00.43.0
GO-2025-4134mediumgolang.org/x/cryptov0.40.00.45.0
GO-2025-4135mediumgolang.org/x/cryptov0.40.00.45.0
GHSA-f6x5-jh6r-wrfvmediumgolang.org/x/cryptov0.40.00.45.0
GHSA-j5w8-q4qc-rx2xmediumgolang.org/x/cryptov0.40.00.45.0
GO-2026-4440unknowngolang.org/x/netv0.42.00.45.0
GO-2026-4441unknowngolang.org/x/netv0.42.00.45.0
GO-2025-3955unknownstdlib1.25.01.25.1
GO-2025-4006unknownstdlib1.25.01.24.8
GO-2025-4007unknownstdlib1.25.01.24.9
GO-2025-4008unknownstdlib1.25.01.24.8
GO-2025-4009unknownstdlib1.25.01.24.8
GO-2025-4010unknownstdlib1.25.01.24.8
GO-2025-4011unknownstdlib1.25.01.24.8
GO-2025-4012unknownstdlib1.25.01.24.8
GO-2025-4013unknownstdlib1.25.01.24.8
GO-2025-4014unknownstdlib1.25.01.24.8
GO-2025-4015unknownstdlib1.25.01.24.8
GO-2025-4155unknownstdlib1.25.01.24.11
GO-2025-4175unknownstdlib1.25.01.24.11
GO-2026-4337unknownstdlib1.25.01.24.13
GO-2026-4340unknownstdlib1.25.01.24.12
GO-2026-4341unknownstdlib1.25.01.24.12
GO-2026-4342unknownstdlib1.25.01.24.12
Hardened vulnerability details (23)
CVE IDSeverityPackageVersionFixed In
GO-2026-4316unknowngithub.com/go-chi/chi/v5v5.2.25.2.4
GO-2025-4017highgithub.com/quic-go/quic-gov0.54.00.49.1
GO-2025-4233mediumgithub.com/quic-go/quic-gov0.54.00.57.0
GHSA-47m2-4cr7-mhcwhighgithub.com/quic-go/quic-gov0.54.00.49.1
GHSA-g754-hx8w-x2g6mediumgithub.com/quic-go/quic-gov0.54.00.57.0
GO-2025-4068mediumgithub.com/slackhq/nebulav1.9.51.9.7
GHSA-69x3-g4r3-p962highgithub.com/slackhq/nebulav1.9.51.10.3
GHSA-x6fh-7qmf-69xhmediumgithub.com/slackhq/nebulav1.9.51.9.7
GO-2025-4180criticalgithub.com/smallstep/certificatesv0.28.40.29.0
GO-2025-4181mediumgithub.com/smallstep/certificatesv0.28.40.29.0
GHSA-h8cp-697h-8c8pcriticalgithub.com/smallstep/certificatesv0.28.40.29.0
GHSA-j7c9-79x7-8hprmediumgithub.com/smallstep/certificatesv0.28.40.29.0
GO-2025-4116unknowngolang.org/x/cryptov0.40.00.43.0
GO-2025-4134mediumgolang.org/x/cryptov0.40.00.45.0
GO-2025-4135mediumgolang.org/x/cryptov0.40.00.45.0
GHSA-f6x5-jh6r-wrfvmediumgolang.org/x/cryptov0.40.00.45.0
GHSA-j5w8-q4qc-rx2xmediumgolang.org/x/cryptov0.40.00.45.0
GO-2026-4440unknowngolang.org/x/netv0.42.00.45.0
GO-2026-4441unknowngolang.org/x/netv0.42.00.45.0
GO-2026-4337unknownstdlib1.25.51.24.13
GO-2026-4340unknownstdlib1.25.51.24.12
GO-2026-4341unknownstdlib1.25.51.24.12
GO-2026-4342unknownstdlib1.25.51.24.12

Software Bill of Materials

upstream components (162)
  • alpine-baselayout 3.7.0-r0
  • alpine-baselayout-data 3.7.0-r0
  • alpine-keys 2.5-r0
  • alpine-release 3.22.3-r0
  • apk-tools 2.14.9-r3
  • brotli-libs 1.1.0-r2
  • busybox 1.37.0-r20
  • busybox-binsh 1.37.0-r20
  • c-ares 1.34.6-r0
  • ca-certificates 20250911-r0
  • ca-certificates-bundle 20250911-r0
  • caddy v0.0.0-20250822212934-551f793700fe
  • cel.dev/expr v0.24.0
  • cloud.google.com/go/auth v0.16.2
  • cloud.google.com/go/auth/oauth2adapt v0.2.8
  • cloud.google.com/go/compute/metadata v0.7.0
  • curl 8.14.1-r2
  • dario.cat/mergo v1.0.1
  • filippo.io/edwards25519 v1.1.0
  • github.com/BurntSushi/toml v1.5.0
  • github.com/KimMachineGun/automemlimit v0.7.4
  • github.com/Masterminds/goutils v1.1.1
  • github.com/Masterminds/semver/v3 v3.3.0
  • github.com/Masterminds/sprig/v3 v3.3.0
  • github.com/alecthomas/chroma/v2 v2.20.0
  • github.com/antlr4-go/antlr/v4 v4.13.0
  • github.com/aryann/difflib v0.0.0-20210328193216-ff5ff6dc229b
  • github.com/beorn7/perks v1.0.1
  • github.com/caddyserver/caddy/v2 v2.10.2
  • github.com/caddyserver/certmagic v0.24.0
  • github.com/caddyserver/zerossl v0.1.3
  • github.com/ccoveille/go-safecast v1.6.1
  • github.com/cenkalti/backoff/v5 v5.0.2
  • github.com/cespare/xxhash/v2 v2.3.0
  • github.com/chzyer/readline v1.5.1
  • github.com/cloudflare/circl v1.6.1
  • github.com/coreos/go-oidc/v3 v3.14.1
  • github.com/cpuguy83/go-md2man/v2 v2.0.7
  • github.com/dlclark/regexp2 v1.11.5
  • github.com/dustin/go-humanize v1.0.1
  • github.com/felixge/httpsnoop v1.0.4
  • github.com/francoispqt/gojay v1.2.13
  • github.com/fxamacker/cbor/v2 v2.8.0
  • github.com/go-chi/chi/v5 v5.2.2
  • github.com/go-jose/go-jose/v3 v3.0.4
  • github.com/go-jose/go-jose/v4 v4.0.5
  • github.com/go-logr/logr v1.4.3
  • github.com/go-logr/stdr v1.2.2
  • github.com/google/cel-go v0.26.0
  • github.com/google/certificate-transparency-go v1.1.8-0.20240110162603-74a5dd331745
  • github.com/google/go-tpm v0.9.5
  • github.com/google/go-tspi v0.3.0
  • github.com/google/s2a-go v0.1.9
  • github.com/google/uuid v1.6.0
  • github.com/googleapis/enterprise-certificate-proxy v0.3.6
  • github.com/googleapis/gax-go/v2 v2.14.2
  • github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.1
  • github.com/huandu/xstrings v1.5.0
  • github.com/klauspost/compress v1.18.0
  • github.com/klauspost/cpuid/v2 v2.3.0
  • github.com/libdns/libdns v1.1.0
  • github.com/manifoldco/promptui v0.9.0
  • github.com/mattn/go-colorable v0.1.13
  • github.com/mattn/go-isatty v0.0.20
  • github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d
  • github.com/mholt/acmez/v3 v3.1.2
  • github.com/miekg/dns v1.1.63
  • github.com/mitchellh/copystructure v1.2.0
  • github.com/mitchellh/go-ps v1.0.0
  • github.com/mitchellh/reflectwalk v1.0.2
  • github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822
  • github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58
  • github.com/pires/go-proxyproto v0.8.1
  • github.com/pkg/errors v0.9.1
  • github.com/prometheus/client_golang v1.23.0
  • github.com/prometheus/client_model v0.6.2
  • github.com/prometheus/common v0.65.0
  • github.com/prometheus/procfs v0.16.1
  • github.com/quic-go/qpack v0.5.1
  • github.com/quic-go/quic-go v0.54.0
  • github.com/rs/xid v1.6.0
  • github.com/russross/blackfriday/v2 v2.1.0
  • github.com/shopspring/decimal v1.4.0
  • github.com/shurcooL/sanitized_anchor_name v1.0.0
  • github.com/sirupsen/logrus v1.9.3
  • github.com/slackhq/nebula v1.9.5
  • github.com/smallstep/certificates v0.28.4
  • github.com/smallstep/cli-utils v0.12.1
  • github.com/smallstep/go-attestation v0.4.4-0.20241119153605-2306d5b464ca
  • github.com/smallstep/linkedca v0.23.0
  • github.com/smallstep/nosql v0.7.0
  • github.com/smallstep/pkcs7 v0.2.1
  • github.com/smallstep/scep v0.0.0-20240926084937-8cf1ca453101
  • github.com/smallstep/truststore v0.13.0
  • github.com/spf13/cast v1.7.0
  • github.com/spf13/cobra v1.9.1
  • github.com/spf13/pflag v1.0.7
  • github.com/stoewer/go-strcase v1.2.0
  • github.com/tailscale/tscert v0.0.0-20240608151842-d3f834017e53
  • github.com/urfave/cli v1.22.17
  • github.com/x448/float16 v0.8.4
  • github.com/yuin/goldmark v1.7.13
  • github.com/yuin/goldmark-highlighting/v2 v2.0.0-20230729083705-37449abec8cc
  • github.com/zeebo/blake3 v0.2.4
  • go.etcd.io/bbolt v1.3.10
  • go.opentelemetry.io/auto/sdk v1.1.0
  • go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.61.0
  • go.opentelemetry.io/contrib/propagators/autoprop v0.62.0
  • go.opentelemetry.io/contrib/propagators/aws v1.37.0
  • go.opentelemetry.io/contrib/propagators/b3 v1.37.0
  • go.opentelemetry.io/contrib/propagators/jaeger v1.37.0
  • go.opentelemetry.io/contrib/propagators/ot v1.37.0
  • go.opentelemetry.io/otel v1.37.0
  • go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.37.0
  • go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.37.0
  • go.opentelemetry.io/otel/metric v1.37.0
  • go.opentelemetry.io/otel/sdk v1.37.0
  • go.opentelemetry.io/otel/trace v1.37.0
  • go.opentelemetry.io/proto/otlp v1.7.0
  • go.step.sm/crypto v0.67.0
  • go.uber.org/automaxprocs v1.6.0
  • go.uber.org/multierr v1.11.0
  • go.uber.org/zap v1.27.0
  • go.uber.org/zap/exp v0.3.0
  • golang.org/x/crypto v0.40.0
  • golang.org/x/crypto/x509roots/fallback v0.0.0-20250305170421-49bf5b80c810
  • golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0
  • golang.org/x/net v0.42.0
  • golang.org/x/oauth2 v0.30.0
  • golang.org/x/sync v0.16.0
  • golang.org/x/sys v0.34.0
  • golang.org/x/term v0.33.0
  • golang.org/x/text v0.27.0
  • golang.org/x/time v0.12.0
  • google.golang.org/api v0.240.0
  • google.golang.org/genproto/googleapis/api v0.0.0-20250603155806-513f23925822
  • google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822
  • google.golang.org/grpc v1.73.0
  • google.golang.org/protobuf v1.36.6
  • gopkg.in/natefinch/lumberjack.v2 v2.2.1
  • gopkg.in/yaml.v3 v3.0.1
  • libapk2 2.14.9-r3
  • libcap 2.76-r0
  • libcap-getcap 2.76-r0
  • libcap-setcap 2.76-r0
  • libcap-utils 2.76-r0
  • libcap2 2.76-r0
  • libcrypto3 3.5.5-r0
  • libcurl 8.14.1-r2
  • libidn2 2.3.7-r0
  • libpsl 0.21.5-r3
  • libssl3 3.5.5-r0
  • libunistring 1.3-r0
  • mailcap 2.1.54-r0
  • musl 1.2.5-r10
  • musl-utils 1.2.5-r10
  • nghttp2-libs 1.65.0-r0
  • scanelf 1.3.8-r1
  • ssl_client 1.37.0-r20
  • stdlib go1.25.0
  • zlib 1.3.1-r2
  • zstd-libs 1.5.7-r0
hardened components (152)
  • bash 5.2p37
  • busybox 1.36.1
  • caddy 2.10.2
  • cel.dev/expr v0.24.0
  • cloud.google.com/go/auth v0.16.2
  • cloud.google.com/go/auth/oauth2adapt v0.2.8
  • cloud.google.com/go/compute/metadata v0.7.0
  • dario.cat/mergo v1.0.1
  • filippo.io/edwards25519 v1.1.0
  • github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96
  • github.com/BurntSushi/toml v1.5.0
  • github.com/KimMachineGun/automemlimit v0.7.4
  • github.com/Masterminds/goutils v1.1.1
  • github.com/Masterminds/semver/v3 v3.3.0
  • github.com/Masterminds/sprig/v3 v3.3.0
  • github.com/alecthomas/chroma/v2 v2.20.0
  • github.com/antlr4-go/antlr/v4 v4.13.0
  • github.com/aryann/difflib v0.0.0-20210328193216-ff5ff6dc229b
  • github.com/beorn7/perks v1.0.1
  • github.com/caddyserver/caddy/v2 UNKNOWN
  • github.com/caddyserver/certmagic v0.24.0
  • github.com/caddyserver/zerossl v0.1.3
  • github.com/ccoveille/go-safecast v1.6.1
  • github.com/cenkalti/backoff/v5 v5.0.2
  • github.com/cespare/xxhash v1.1.0
  • github.com/cespare/xxhash/v2 v2.3.0
  • github.com/chzyer/readline v1.5.1
  • github.com/cloudflare/circl v1.6.1
  • github.com/coreos/go-oidc/v3 v3.14.1
  • github.com/cpuguy83/go-md2man/v2 v2.0.7
  • github.com/dgraph-io/badger v1.6.2
  • github.com/dgraph-io/badger/v2 v2.2007.4
  • github.com/dgraph-io/ristretto v0.2.0
  • github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13
  • github.com/dlclark/regexp2 v1.11.5
  • github.com/dustin/go-humanize v1.0.1
  • github.com/felixge/httpsnoop v1.0.4
  • github.com/francoispqt/gojay v1.2.13
  • github.com/fxamacker/cbor/v2 v2.8.0
  • github.com/go-chi/chi/v5 v5.2.2
  • github.com/go-jose/go-jose/v3 v3.0.4
  • github.com/go-jose/go-jose/v4 v4.0.5
  • github.com/go-logr/logr v1.4.3
  • github.com/go-logr/stdr v1.2.2
  • github.com/go-sql-driver/mysql v1.8.1
  • github.com/golang/protobuf v1.5.4
  • github.com/golang/snappy v0.0.4
  • github.com/google/cel-go v0.26.0
  • github.com/google/certificate-transparency-go v1.1.8-0.20240110162603-74a5dd331745
  • github.com/google/go-tpm v0.9.5
  • github.com/google/go-tspi v0.3.0
  • github.com/google/s2a-go v0.1.9
  • github.com/google/uuid v1.6.0
  • github.com/googleapis/enterprise-certificate-proxy v0.3.6
  • github.com/googleapis/gax-go/v2 v2.14.2
  • github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.1
  • github.com/huandu/xstrings v1.5.0
  • github.com/jackc/pgpassfile v1.0.0
  • github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a
  • github.com/jackc/pgx/v5 v5.6.0
  • github.com/jackc/puddle/v2 v2.2.1
  • github.com/klauspost/compress v1.18.0
  • github.com/klauspost/cpuid/v2 v2.3.0
  • github.com/libdns/libdns v1.1.0
  • github.com/manifoldco/promptui v0.9.0
  • github.com/mattn/go-colorable v0.1.13
  • github.com/mattn/go-isatty v0.0.20
  • github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d
  • github.com/mholt/acmez/v3 v3.1.2
  • github.com/miekg/dns v1.1.63
  • github.com/mitchellh/copystructure v1.2.0
  • github.com/mitchellh/go-ps v1.0.0
  • github.com/mitchellh/reflectwalk v1.0.2
  • github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822
  • github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58
  • github.com/pires/go-proxyproto v0.8.1
  • github.com/pkg/errors v0.9.1
  • github.com/prometheus/client_golang v1.23.0
  • github.com/prometheus/client_model v0.6.2
  • github.com/prometheus/common v0.65.0
  • github.com/prometheus/procfs v0.16.1
  • github.com/quic-go/qpack v0.5.1
  • github.com/quic-go/quic-go v0.54.0
  • github.com/rs/xid v1.6.0
  • github.com/russross/blackfriday/v2 v2.1.0
  • github.com/shopspring/decimal v1.4.0
  • github.com/shurcooL/sanitized_anchor_name v1.0.0
  • github.com/sirupsen/logrus v1.9.3
  • github.com/slackhq/nebula v1.9.5
  • github.com/smallstep/certificates v0.28.4
  • github.com/smallstep/cli-utils v0.12.1
  • github.com/smallstep/go-attestation v0.4.4-0.20241119153605-2306d5b464ca
  • github.com/smallstep/linkedca v0.23.0
  • github.com/smallstep/nosql v0.7.0
  • github.com/smallstep/pkcs7 v0.2.1
  • github.com/smallstep/scep v0.0.0-20240926084937-8cf1ca453101
  • github.com/smallstep/truststore v0.13.0
  • github.com/spf13/cast v1.7.0
  • github.com/spf13/cobra v1.9.1
  • github.com/spf13/pflag v1.0.7
  • github.com/stoewer/go-strcase v1.2.0
  • github.com/tailscale/tscert v0.0.0-20240608151842-d3f834017e53
  • github.com/urfave/cli v1.22.17
  • github.com/x448/float16 v0.8.4
  • github.com/yuin/goldmark v1.7.13
  • github.com/yuin/goldmark-highlighting/v2 v2.0.0-20230729083705-37449abec8cc
  • github.com/zeebo/blake3 v0.2.4
  • glibc 2.40-66
  • go.etcd.io/bbolt v1.3.10
  • go.opentelemetry.io/auto/sdk v1.1.0
  • go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.61.0
  • go.opentelemetry.io/contrib/propagators/autoprop v0.62.0
  • go.opentelemetry.io/contrib/propagators/aws v1.37.0
  • go.opentelemetry.io/contrib/propagators/b3 v1.37.0
  • go.opentelemetry.io/contrib/propagators/jaeger v1.37.0
  • go.opentelemetry.io/contrib/propagators/ot v1.37.0
  • go.opentelemetry.io/otel v1.37.0
  • go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.37.0
  • go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.37.0
  • go.opentelemetry.io/otel/metric v1.37.0
  • go.opentelemetry.io/otel/sdk v1.37.0
  • go.opentelemetry.io/otel/trace v1.37.0
  • go.opentelemetry.io/proto/otlp v1.7.0
  • go.step.sm/crypto v0.67.0
  • go.uber.org/automaxprocs v1.6.0
  • go.uber.org/multierr v1.11.0
  • go.uber.org/zap v1.27.0
  • go.uber.org/zap/exp v0.3.0
  • golang.org/x/crypto v0.40.0
  • golang.org/x/crypto/x509roots/fallback v0.0.0-20250305170421-49bf5b80c810
  • golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0
  • golang.org/x/net v0.42.0
  • golang.org/x/oauth2 v0.30.0
  • golang.org/x/sync v0.16.0
  • golang.org/x/sys v0.34.0
  • golang.org/x/term v0.33.0
  • golang.org/x/text v0.27.0
  • golang.org/x/time v0.12.0
  • google.golang.org/api v0.240.0
  • google.golang.org/genproto/googleapis/api v0.0.0-20250603155806-513f23925822
  • google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822
  • google.golang.org/grpc v1.73.0
  • google.golang.org/protobuf v1.36.6
  • gopkg.in/natefinch/lumberjack.v2 v2.2.1
  • gopkg.in/yaml.v3 v3.0.1
  • iana-etc 20250505
  • libidn2 2.3.7
  • libunistring 1.2
  • mailcap 2.1.54
  • stdlib go1.25.5
  • tzdata 2025b
  • xgcc 13.3.0

Download SBOMs

Upstream SBOM Hardened SBOM

Usage

$ podman pull ghcr.io/armorred/caddy:2

Verify Signature

$ cosign verify --key https://armorred.org/cosign.pub ghcr.io/armorred/caddy:2