Upstream information

CVE-2026-42154 at MITRE

Description

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint (/api/v1/read) does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a small payload that causes a huge heap allocation per request. Under concurrent load this can exhaust available memory and crash the Prometheus process. This issue has been patched in versions 3.5.3 and 3.11.3.

SUSE information

Overall state of this security issue: Does not affect SUSE products

SUSE Bugzilla entry: 1263987 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • golang-github-prometheus-prometheus >= 3.11.3-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-10676

SUSE Timeline for this CVE

CVE page created: Mon May 4 22:00:56 2026
CVE page last modified: Fri May 8 12:08:59 2026