| Name | CVE-2026-97031 |
| Description | Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result. |
| 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) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| golang-1.19 (PTS) | bookworm | 1.19.8-2 | vulnerable |
| golang-1.24 (PTS) | trixie | 1.24.4-1 | vulnerable |
| golang-1.26 (PTS) | forky, sid | 1.26.10-1 | fixed |
| golang-1.27 (PTS) | forky, sid | 1.27.3-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| golang-1.19 | source | (unstable) | (unfixed) | |||
| golang-1.24 | source | (unstable) | (unfixed) | |||
| golang-1.25 | source | (unstable) | (unfixed) | |||
| golang-1.26 | source | (unstable) | 1.26.9-1 | |||
| golang-1.27 | source | (unstable) | 1.27.2-1 |
[trixie] - golang-1.24 <no-dsa> (Minor issue)
[bookworm] - golang-1.19 <postponed> (Minor issue)
https://www.openwall.com/lists/oss-security/2026/10/08/9
https://github.com/golang/go/issues/81855
Fixed by: https://github.com/golang/go/commit/f022e61963529d5e691f0e42a87fd5b520f01636 (go1.27.2)
Fixed by: https://github.com/golang/go/commit/eb1bf6e0c4f68b23409483b156e1455696508c6e (go1.26.9)