CVE-2026-18259

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-26. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
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%CVSS: 7.5Exploit: None knownExposed: 0

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

Observable Timing Discrepancy vulnerability in Drupal Token Content Access allows Brute Force. This issue affects Token Content Access versions: from 0.0.0 to 3.1.2.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 26, 2026
No patch confirmed yet.
generic

Token Content Access - Moderately critical - Access bypass - SA-CONTRIB-2026-090 | Drupal.org

https://www.drupal.org/sa-contrib-2026-090

Vendor Advisories for CVE-2026-18259(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:https://packages.drupal.org/8(1)
PackageVulnerable rangeFixed inDependents
drupal/tca—3.1.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× in last 7d / 101× 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 101 total refreshes for this CVE.

  1. 2026-09-19 05:58 UTCEG score recompute
  2. 2026-09-19 05:58 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 18:58 UTCGHSA enrichment
  5. 2026-09-18 07:59 UTCGHSA enrichment
  6. 2026-09-17 21:00 UTCEG score recompute
  7. 2026-09-17 21:00 UTCGHSA enrichment
  8. 2026-09-17 08:48 UTCGHSA enrichment
  9. 2026-09-16 21:48 UTCEG score recompute
  10. 2026-09-16 21:48 UTCGHSA enrichment
  11. 2026-09-16 14:07 UTCEPSS rescore
  12. 2026-09-16 10:50 UTCEG score recompute
  13. 2026-09-16 10:50 UTCGHSA enrichment
  14. 2026-09-16 05:14 UTCEPSS rescore
  15. 2026-09-15 23:51 UTCGHSA enrichment
  16. 2026-09-15 12:52 UTCEG score recompute
  17. 2026-09-15 12:52 UTCGHSA enrichment
  18. 2026-09-15 01:52 UTCGHSA enrichment
  19. 2026-09-14 14:53 UTCGHSA enrichment
  20. 2026-09-14 03:54 UTCGHSA enrichment
  21. 2026-09-13 16:55 UTCEG score recompute
  22. 2026-09-13 16:55 UTCGHSA enrichment
  23. 2026-09-13 16:46 UTCEPSS rescore
  24. 2026-09-13 05:56 UTCGHSA enrichment
  25. 2026-09-12 18:57 UTCEG score recompute
Show 75 more
  1. 2026-09-12 18:57 UTCGHSA enrichment
  2. 2026-09-12 15:00 UTCEPSS rescore
  3. 2026-09-12 07:58 UTCGHSA enrichment
  4. 2026-09-11 20:59 UTCEG score recompute
  5. 2026-09-11 20:59 UTCGHSA enrichment
  6. 2026-09-11 14:52 UTCEPSS rescore
  7. 2026-09-11 10:00 UTCEG score recompute
  8. 2026-09-11 10:00 UTCGHSA enrichment
  9. 2026-09-11 09:36 UTCEPSS rescore
  10. 2026-09-10 22:58 UTCGHSA enrichment
  11. 2026-09-10 11:58 UTCEG score recompute
  12. 2026-09-10 11:58 UTCGHSA enrichment
  13. 2026-09-10 09:34 UTCEPSS rescore
  14. 2026-09-10 00:12 UTCGHSA enrichment
  15. 2026-09-09 11:55 UTCGHSA enrichment
  16. 2026-09-09 00:56 UTCEG score recompute
  17. 2026-09-09 00:56 UTCGHSA enrichment
  18. 2026-09-08 22:00 UTCEPSS rescore
  19. 2026-09-08 05:10 UTCGHSA enrichment
  20. 2026-09-07 18:08 UTCEG score recompute
  21. 2026-09-07 18:08 UTCGHSA enrichment
  22. 2026-09-07 16:01 UTCEPSS rescore
  23. 2026-09-07 07:09 UTCGHSA enrichment
  24. 2026-09-06 20:10 UTCEG score recompute
  25. 2026-09-06 20:10 UTCGHSA enrichment
  26. 2026-09-06 13:47 UTCEPSS rescore
  27. 2026-09-06 09:10 UTCGHSA enrichment
  28. 2026-09-05 22:06 UTCEG score recompute
  29. 2026-09-05 22:06 UTCGHSA enrichment
  30. 2026-09-05 11:07 UTCGHSA enrichment
  31. 2026-09-05 00:02 UTCEG score recompute
  32. 2026-09-05 00:02 UTCGHSA enrichment
  33. 2026-09-04 13:01 UTCEG score recompute
  34. 2026-09-04 13:01 UTCGHSA enrichment
  35. 2026-09-04 05:06 UTCEPSS rescore
  36. 2026-09-04 02:00 UTCGHSA enrichment
  37. 2026-09-03 15:00 UTCGHSA enrichment
  38. 2026-09-03 03:58 UTCGHSA enrichment
  39. 2026-09-02 17:00 UTCEG score recompute
  40. 2026-09-02 16:59 UTCGHSA enrichment
  41. 2026-09-02 14:11 UTCEPSS rescore
  42. 2026-09-02 05:57 UTCGHSA enrichment
  43. 2026-09-01 18:54 UTCEG score recompute
  44. 2026-09-01 18:54 UTCGHSA enrichment
  45. 2026-09-01 13:53 UTCEPSS rescore
  46. 2026-09-01 07:54 UTCEG score recompute
  47. 2026-09-01 07:54 UTCGHSA enrichment
  48. 2026-09-01 04:39 UTCEPSS rescore
  49. 2026-08-31 20:52 UTCGHSA enrichment
  50. 2026-08-31 09:53 UTCGHSA enrichment
  51. 2026-08-30 22:53 UTCEG score recompute
  52. 2026-08-30 22:53 UTCGHSA enrichment
  53. 2026-08-30 19:17 UTCEPSS rescore
  54. 2026-08-30 11:55 UTCEG score recompute
  55. 2026-08-30 11:54 UTCGHSA enrichment
  56. 2026-08-30 01:22 UTCEPSS rescore
  57. 2026-08-30 00:51 UTCGHSA enrichment
  58. 2026-08-29 13:52 UTCGHSA enrichment
  59. 2026-08-29 02:52 UTCEG score recompute
  60. 2026-08-29 02:51 UTCGHSA enrichment
  61. 2026-08-28 21:41 UTCEPSS rescore
  62. 2026-08-28 15:52 UTCGHSA enrichment
  63. 2026-08-28 05:33 UTCGHSA enrichment
  64. 2026-08-27 18:32 UTCEG score recompute
  65. 2026-08-27 18:31 UTCGHSA enrichment
  66. 2026-08-27 14:25 UTCEPSS rescore
  67. 2026-08-27 07:29 UTCEG score recompute
  68. 2026-08-27 07:29 UTCGHSA enrichment
  69. 2026-08-26 20:30 UTCGHSA enrichment
  70. 2026-08-26 19:27 UTCEG score recompute▲ 7.50
  71. 2026-08-26 19:27 UTCGHSA enrichment
  72. 2026-08-26 19:26 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  73. 2026-08-26 14:46 UTCEPSS rescore
  74. 2026-08-25 23:30 UTCNVD update
  75. 2026-08-25 22:35 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-18259?
CVE-2026-18259 is a high vulnerability published on August 25, 2026. Observable Timing Discrepancy vulnerability in Drupal Token Content Access allows Brute Force. This issue affects Token Content Access versions: from 0.0.0 to 3.1.2.
When was CVE-2026-18259 disclosed?
CVE-2026-18259 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18259 actively exploited?
CVE-2026-18259 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 83.9% of all scored CVEs.
What is the CVSS score of CVE-2026-18259?
CVE-2026-18259 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-18259?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18259, 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

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