CVE-2026-62237

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-07-17. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Grav before 2.0.4 contains a regular expression denial of service (ReDoS) vulnerability in the regex_replace filter and function, which are allowlisted in the Twig content sandbox. When Twig processing in page content is enabled (security.twig_content.process_enabled: true, disabled by default), an authenticated page editor can supply a catastrophically backtracking PCRE pattern that is passed directly to PHP's preg_replace(), causing unbounded CPU consumption and denial of service to the web server process.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: Track

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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 21, 2026

Advisory Details (2)

Auto-updated Jul 17, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Grav < 2.0.4 ReDoS via regex_replace in Sandbox | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-redos-via-regex-replace-in-sandbox
github Patch Available🟡 PoC Available

Authenticated ReDoS via regex_replace in Twig Sandbox · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-37f3-6p89-6qr9

Vendor Advisories for CVE-2026-62237(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
getgrav/grav0.8.0 ... 2.0.3 (338 versions)2.0.4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 62× 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 138 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-62237?
CVE-2026-62237 is a medium vulnerability published on July 17, 2026. Grav before 2.0.4 contains a regular expression denial of service (ReDoS) vulnerability in the regexreplace filter and function, which are allowlisted in the Twig content sandbox. When Twig processing in page content is enabled (security.twigcontent.processenabled: true, disabled by default), an…
When was CVE-2026-62237 disclosed?
CVE-2026-62237 was first published in the National Vulnerability Database on July 17, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62237 actively exploited?
CVE-2026-62237 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 63.2% of all scored CVEs.
What is the CVSS score of CVE-2026-62237?
CVE-2026-62237 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-62237?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62237, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-62237

Explore →

Is Your Infrastructure Affected by CVE-2026-62237?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs