ALPINE-CVE-2026-27135
nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the incoming data when user facing public API `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2` is called by the application. They might be called internally by the library when it detects the situation that is subject to connection error. Due to the missing internal state validation, the library keeps reading the rest of the data after one of those APIs is called. Then receiving a malformed frame that causes FRAME_SIZE_ERROR causes assertion failure. nghttp2 v1.68.1 adds missing state validation to avoid assertion failure. No known workarounds are available.
ALPINE-CVE-2026-27135
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:ALPINE-CVE-2026-27135
nghttp2
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 1.68.1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
nghttp2
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 1.68.1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
nghttp2
Source reference: /affected/2/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 1.68.1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
nghttp2
Source reference: /affected/3/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 1.68.1-r0
Source reference:
/affected/3/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.68.1"
}
]
}
],
"package": {
"name": "nghttp2",
"purl": "pkg:apk/alpine/nghttp2?arch=source",
"ecosystem": "Alpine:v3.21"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27135.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.68.1"
}
]
}
],
"package": {
"name": "nghttp2",
"purl": "pkg:apk/alpine/nghttp2?arch=source",
"ecosystem": "Alpine:v3.22"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27135.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.68.1"
}
]
}
],
"package": {
"name": "nghttp2",
"purl": "pkg:apk/alpine/nghttp2?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27135.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.68.1-r0"
}
]
}
],
"package": {
"name": "nghttp2",
"purl": "pkg:apk/alpine/nghttp2?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27135.json"
},
"ecosystem_specific": {}
}
]Publisher severity
No explicit severity was provided.
- Event
- #60902 · Revision 1
- Added to Heist Feed
- Publisher date