CVE-2026-52794

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 60% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

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.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
38
EG Risk 38/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.5%
EPSS %ILE
38th
KEV
Not listed

Published

June 24, 2026

Last Modified

June 27, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
Fix named in the CVE record. Sources: github, github_pr.
githubMentions a patch (unverified)

Inefficient Regular Expression Complexity in Sentry · Advisory · getsentry/sentry · GitHub

https://github.com/getsentry/sentry/security/advisories/GHSA-jjqr-wqg2-p856
github_pr

fix(grouping): Fix hostname regex bugs, take 2

Fix merged in getsentry/sentry PR #116587 on 2026-06-01 — awaiting tagged release

https://github.com/getsentry/sentry/pull/116587

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 136 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-04 23:22 UTCEPSS rescore
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-02 17:56 UTCEPSS rescore
  9. 2026-10-01 19:50 UTCEPSS rescore
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-29 15:22 UTCEPSS rescore
  12. 2026-09-28 13:51 UTCEPSS rescore
  13. 2026-09-27 13:48 UTCEPSS rescore
  14. 2026-09-26 15:59 UTCEPSS rescore
  15. 2026-09-26 00:27 UTCEPSS rescore
  16. 2026-09-23 17:53 UTCEPSS rescore
  17. 2026-09-23 09:50 UTCEG score recompute
  18. 2026-09-20 20:16 UTCEPSS rescore
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-18 07:46 UTCEG score recompute
  21. 2026-09-16 14:08 UTCEPSS rescore
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-14 01:32 UTCEG score recompute
  24. 2026-09-13 16:47 UTCEPSS rescore
  25. 2026-09-12 16:05 UTCEG score recompute
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  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-10 09:35 UTCEPSS rescore
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-07 16:01 UTCEPSS rescore
  5. 2026-09-06 13:47 UTCEPSS rescore
  6. 2026-09-04 05:06 UTCEPSS rescore
  7. 2026-09-02 14:12 UTCEPSS rescore
  8. 2026-09-01 13:54 UTCEPSS rescore
  9. 2026-09-01 04:40 UTCEPSS rescore
  10. 2026-08-30 19:49 UTCEG score recompute
  11. 2026-08-30 19:17 UTCEPSS rescore
  12. 2026-08-30 01:22 UTCEPSS rescore
  13. 2026-08-28 21:41 UTCEPSS rescore
  14. 2026-08-28 02:58 UTCEG score recompute
  15. 2026-08-27 14:25 UTCEPSS rescore
  16. 2026-08-26 14:46 UTCEPSS rescore
  17. 2026-08-25 13:49 UTCEPSS rescore
  18. 2026-08-24 21:53 UTCEG score recompute
  19. 2026-08-23 02:03 UTCEG score recompute
  20. 2026-08-23 00:19 UTCEPSS rescore
  21. 2026-08-22 12:47 UTCEG score recompute
  22. 2026-08-21 23:49 UTCEPSS rescore
  23. 2026-08-21 09:36 UTCEG score recompute
  24. 2026-08-20 22:55 UTCEPSS rescore
  25. 2026-08-20 07:13 UTCEG score recompute
  26. 2026-08-19 17:04 UTCEPSS rescore
  27. 2026-08-19 01:40 UTCEG score recompute
  28. 2026-08-18 13:48 UTCEPSS rescore
  29. 2026-08-17 13:47 UTCEPSS rescore
  30. 2026-08-17 00:11 UTCEG score recompute
  31. 2026-08-16 14:56 UTCEPSS rescore
  32. 2026-08-16 10:59 UTCEG score recompute
  33. 2026-08-16 02:14 UTCEPSS rescore
  34. 2026-08-15 08:38 UTCEG score recompute
  35. 2026-08-15 01:30 UTCEPSS rescore
  36. 2026-08-14 03:48 UTCEG score recompute
  37. 2026-08-13 22:00 UTCEPSS rescore
  38. 2026-08-13 01:10 UTCEG score recompute
  39. 2026-08-12 13:51 UTCEPSS rescore
  40. 2026-08-11 22:49 UTCEG score recompute
  41. 2026-08-11 09:33 UTCEG score recompute
  42. 2026-08-11 00:00 UTCEPSS rescore
  43. 2026-08-09 17:59 UTCEG score recompute
  44. 2026-08-09 13:46 UTCEPSS rescore
  45. 2026-08-09 04:48 UTCEG score recompute
  46. 2026-08-08 16:37 UTCEPSS rescore
  47. 2026-08-08 02:25 UTCEG score recompute
  48. 2026-08-07 00:04 UTCEG score recompute
  49. 2026-08-06 13:47 UTCEPSS rescore
  50. 2026-08-05 21:41 UTCEG score recompute
  51. 2026-08-05 19:17 UTCEPSS rescore
  52. 2026-08-04 16:22 UTCEG score recompute
  53. 2026-08-04 15:10 UTCEPSS rescore
  54. 2026-08-04 10:39 UTCEPSS rescore
  55. 2026-08-03 14:00 UTCEG score recompute
  56. 2026-08-03 10:36 UTCEPSS rescore
  57. 2026-08-01 07:51 UTCEG score recompute
  58. 2026-08-01 04:16 UTCEPSS rescore
  59. 2026-07-31 05:29 UTCEG score recompute
  60. 2026-07-30 16:28 UTCEPSS rescore
  61. 2026-07-30 16:17 UTCEG score recompute
  62. 2026-07-30 03:01 UTCEG score recompute
  63. 2026-07-30 01:30 UTCEPSS rescore
  64. 2026-07-29 00:39 UTCEG score recompute
  65. 2026-07-28 15:37 UTCEPSS rescore
  66. 2026-07-27 21:07 UTCEG score recompute
  67. 2026-07-26 15:21 UTCEG score recompute
  68. 2026-07-26 14:54 UTCEPSS rescore
  69. 2026-07-25 14:18 UTCEPSS rescore
  70. 2026-07-24 14:18 UTCEPSS rescore
  71. 2026-07-23 14:18 UTCEPSS rescore
  72. 2026-07-23 03:19 UTCEG score recompute
  73. 2026-07-22 14:08 UTCEPSS rescore
  74. 2026-07-20 17:08 UTCEPSS rescore
  75. 2026-07-19 14:31 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-52794?
CVE-2026-52794 is a high vulnerability published on June 24, 2026. 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…
When was CVE-2026-52794 disclosed?
CVE-2026-52794 was first published on June 24, 2026, with the most recent update on June 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52794 actively exploited?
CVE-2026-52794 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-52794?
CVE-2026-52794 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-52794?
The CVE record for CVE-2026-52794 names the fix: "This vulnerability is fixed in 26.5.2."

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