CVE-2026-33374
Unbounded memory allocation in the Prometheus rule conversion API
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 12.4.13, 13.0.11, 13.1.8, 13.2.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
The Prometheus rule conversion API endpoints in Grafana do not limit request body size, allowing authenticated users to trigger unbounded memory allocations that can crash the server through out-of-memory conditions.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Grafana Grafana Enterprise
From 12.0.0 · through 12.3.11; From 12.4.0 · fixed in 12.4.13; From 13.0.0 · fixed in 13.0.11; From 13.1.0 · fixed in 13.1.8; From 13.2.0 · fixed in 13.2.4
- Grafana Grafana OSS
From 12.0.0 · through 12.3.11; From 12.4.0 · fixed in 12.4.13; From 13.0.0 · fixed in 13.0.11; From 13.1.0 · fixed in 13.1.8; From 13.2.0 · fixed in 13.2.4