| Name | CVE-2026-56858 |
| Description | Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS. |
| Source | CVE (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 Bugs | 1144340, 1144341, 1144342 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| golang-1.15 (PTS) | bullseye | 1.15.15-1~deb11u4 | vulnerable |
| golang-1.19 (PTS) | bookworm | 1.19.8-2 | vulnerable |
| golang-1.24 (PTS) | trixie | 1.24.4-1 | vulnerable |
| golang-1.25 (PTS) | forky, sid | 1.25.12-1 | vulnerable |
| golang-1.26 (PTS) | forky, sid | 1.26.5-1 | vulnerable |
| golang-1.27 (PTS) | forky, sid | 1.27~rc2-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| golang-1.15 | source | (unstable) | (unfixed) | |||
| golang-1.19 | source | (unstable) | (unfixed) | |||
| golang-1.24 | source | (unstable) | (unfixed) | |||
| golang-1.25 | source | (unstable) | (unfixed) | 1144342 | ||
| golang-1.26 | source | (unstable) | (unfixed) | 1144341 | ||
| golang-1.27 | source | (unstable) | (unfixed) | 1144340 |
[trixie] - golang-1.24 <no-dsa> (Minor issue)
https://github.com/golang/go/issues/80435
Fixed by: https://github.com/golang/go/commit/bcdba48a6adcaceabb3696e46b50be21dc739b5e (go1.27rc3)
Fixed by: https://github.com/golang/go/commit/33ecb966ca47e55034272a9146e23e9909507f6d (go1.26.6)
Fixed by: https://github.com/golang/go/commit/cafd3448c7cb0b2d793bb4144d58f72ef3f48327 (go1.25.13)