CVE-2026-37531

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-01. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

AGL app-framework-main thru 17.1.12 contains a Zip Slip path traversal vulnerability (CWE-22) combined with a TOCTOU race condition (CWE-367) in the widget installation flow. The is_valid_filename function in wgtpkg-zip.c validates ZIP entry names but does not check for dot notation directory traversal sequences it only blocks absolute paths. The zread extraction function uses openat(workdirfd, filename, O_CREAT) which resolves dot notation values relative to the work directory, allowing files to be written anywhere on the filesystem. Critically, in function install_widget in file wgtpkg-install.c, extraction via zread occurs BEFORE signature verification via check_all_signatures. Even if signature verification fails, the error cleanup (remove_workdir) only deletes the temporary work directory files written outside via path traversal persist permanently.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
52%
KEV
Not listed

Published

May 1, 2026

Last Modified

May 18, 2026

Advisory Details (1)

Auto-updated Sep 9, 2026
No patch confirmed yet.
generic

Automotive Grade Linux (AGL) Multiple Vulnerabilities (CVE-2026-37525/37526/37530/37531/37532/42485) · GitHub

https://gist.github.com/sgInnora/8526eedcfd826d05ef1fc45d8f405643

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 31× 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 286 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-37531?
CVE-2026-37531 is a critical vulnerability published on May 1, 2026. AGL app-framework-main thru 17.1.12 contains a Zip Slip path traversal vulnerability (CWE-22) combined with a TOCTOU race condition (CWE-367) in the widget installation flow. The isvalidfilename function in wgtpkg-zip.c validates ZIP entry names but does not check for dot notation directory…
When was CVE-2026-37531 disclosed?
CVE-2026-37531 was first published in the National Vulnerability Database on May 1, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-37531 actively exploited?
CVE-2026-37531 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 48.4% of all scored CVEs.
What is the CVSS score of CVE-2026-37531?
CVE-2026-37531 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-37531?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-37531, 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.

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