CVE-2026-76234

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-19. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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.

libcrux-ecdh and libcrux-ed25519 before 0.0.6, and libcrux-psq before 0.0.7, contain cryptographic implementation bugs. libcrux-ecdh did not properly check length and clamping during X25519 secret validation (and had a broken clamping check for imported X25519 secret keys); libcrux-ed25519 performed a duplicated clamping step during key generation; and libcrux-psq panicked instead of propagating an AEADError. These were fixed in the respective patched releases.

CVSS v3
7.5
EG Score
7.5(medium)
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
13%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 21, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
Patch available. Sources: github.
generic

libcrux before 0.0.6 Cryptographic Implementation Bug Fixes | Advisories | VulnCheck

https://www.vulncheck.com/advisories/libcrux-before-cryptographic-implementation-bug-fixes
github Patch Available

Bug-Fixes in `libcrux-ecdh`, `libcrux-ed25519`, `libcrux-psq` · Advisory · celabshq/libcrux · GitHub

https://github.com/celabshq/libcrux/security/advisories/GHSA-435g-fcv3-8j26

Vendor Advisories for CVE-2026-76234(1)

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

Affected Packages

(3 across 1 ecosystem)
crates.io(3)
PackageVulnerable rangeFixed inDependents
libcrux-ecdh—0.0.6—
libcrux-ed25519—0.0.6—
libcrux-psq—0.0.7—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 109× 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 119 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76234?
CVE-2026-76234 is a high vulnerability published on August 19, 2026. libcrux-ecdh and libcrux-ed25519 before 0.0.6, and libcrux-psq before 0.0.7, contain cryptographic implementation bugs. libcrux-ecdh did not properly check length and clamping during X25519 secret validation (and had a broken clamping check for imported X25519 secret keys); libcrux-ed25519…
When was CVE-2026-76234 disclosed?
CVE-2026-76234 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76234 actively exploited?
CVE-2026-76234 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 86.7% of all scored CVEs.
What is the CVSS score of CVE-2026-76234?
CVE-2026-76234 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-76234?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76234, 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-2026-76234

Explore →

Is Your Infrastructure Affected by CVE-2026-76234?

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

Start Free Scan →Browse All CVEs