CVE-2026-33378
Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macro
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 11.6.14+security-04, 12.2.8+security-04, 12.3.6+security-04, 12.4.3+security-02, 13.0.1+security-01
- 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
Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Grafana Grafana OSS
From 8.0.0 · through 11.6.14; From 11.6.14 · fixed in 11.6.14+security-04; From 12.0.0 · through 12.2.8; From 12.2.8 · fixed in 12.2.8+security-04; From 12.3.0 · through 12.3.6; From 12.3.6 · fixed in 12.3.6+security-04; From 12.4.0 · through 12.4.3; From 12.4.3 · fixed in 12.4.3+security-02; From 13.0.0 · through 13.0.1; From 13.0.1 · fixed in 13.0.1+security-01