| Name | CVE-2026-56860 |
| Description | Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations. |
| 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/80494
Fixed by: https://github.com/golang/go/commit/bd62f0c26450224a26857a6d38a738d31f8fbaf6 (go1.27rc3)
Fixed by: https://github.com/golang/go/commit/128893dbf9a6b4d6e7c99942096e2c0018d6fe57 (go1.26.6)
Fixed by: https://github.com/golang/go/commit/962b300d32b68fd5f3c11674f711fc0e86251664 (go1.25.13)