# CVE-2026-52794: Sentry: Inefficient Regular Expression Complexity in sentry

> CVE-2026-52794: Sentry: Inefficient Regular Expression Complexity in sentry. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-52794
Last updated: 2026-06-27T20:45:54Z

- Published: 2026-06-24 21:26 UTC · Updated: 2026-06-27 20:45 UTC · Assigner: GitHub\_M
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.55%, 45th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-1333

## Description

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.

## Affected vendors and products

- getsentry: sentry

## Tracked companies

- [Sentry](https://rewindex.com/company/sentry.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-52794)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-52794)
- [https://github.com/getsentry/sentry/pull/116587](https://github.com/getsentry/sentry/pull/116587)
- [https://github.com/getsentry/sentry/security/advisories/GHSA-jjqr-wqg2-p856](https://github.com/getsentry/sentry/security/advisories/GHSA-jjqr-wqg2-p856)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-52794 · Markdown: https://rewindex.com/cve/CVE-2026-52794.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-52794 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T05:11:45.935Z