Vulnerability in Getsentry Sentry
CVE-2026-52794
Sentry is an error tracking and performance monitoring tool. From 24.4.0 until 26.5.2, a Regular Expression Denial of Service (ReDoS) vulnerability exists in Sentry's event ingestion pipeline, where a regex applied to attacker-controlled fields on incoming events can be made to consume disproportionate CPU time. This vulnerability is fixed in 26.5.2.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Getsentry Sentry — versions >= 24.4.0, < 26.5.2
- Sentry
Weakness classification (CWE)
References
- github.com/getsentry/sentry/security/advisories/GHSA-jjqr-wqg2-p856 (Mitigation, Vendor Advisory)
- github.com/getsentry/sentry/pull/116587 (Patch, Issue Tracking)
Frequently asked questions
- What is CVE-2026-52794?
- CVE-2026-52794 is a high-severity vulnerability in Getsentry Sentry, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2026-06-24.
- How severe is CVE-2026-52794?
- High severity. CVSS v3 base score is 7.5 out of 10.