CVE-2026-33818

NameCVE-2026-33818
DescriptionEnforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1144340, 1144341, 1144342

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
golang-1.15 (PTS)bullseye1.15.15-1~deb11u4vulnerable
golang-1.19 (PTS)bookworm1.19.8-2vulnerable
golang-1.24 (PTS)trixie1.24.4-1vulnerable
golang-1.25 (PTS)forky, sid1.25.12-1vulnerable
golang-1.26 (PTS)forky, sid1.26.5-1vulnerable
golang-1.27 (PTS)forky, sid1.27~rc2-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
golang-1.15source(unstable)(unfixed)
golang-1.19source(unstable)(unfixed)
golang-1.24source(unstable)(unfixed)
golang-1.25source(unstable)(unfixed)1144342
golang-1.26source(unstable)(unfixed)1144341
golang-1.27source(unstable)(unfixed)1144340

Notes

[trixie] - golang-1.24 <no-dsa> (Minor issue)
https://github.com/golang/go/issues/80405
Fixed by: https://github.com/golang/go/commit/41cb2f352e2b4cfb93809ede794d7e5ee9ec2c68 (go1.27rc3)
Fixed by: https://github.com/golang/go/commit/6ec908dd240103f222620a222bc8a4c3e2c33718 (go1.26.6)
Fixed by: https://github.com/golang/go/commit/8d01cbaad59021bd6d4f6e2dd864413872434250 (go1.25.13)

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