CVE-2026-12860

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory (severity: HIGH) published 2026-08-03. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

In Bouncy Castle for Java before 1.85, RSA PKCS#1 verification skips last two hash bytes in NULL-omitted path. This issue also affects Bouncy Castle for Java LTS before 2.73.12.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

August 3, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Aug 3, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit ea5970ea9b2f (bcgit/bc-java)

Fix landed in bcgit/bc-java commit ea5970ea9b2f — awaiting tagged release

https://github.com/bcgit/bc-java/commit/ea5970ea9b2fb91d763b904692fd21089ca3e396
generic

Home · bcgit/bc-java Wiki · GitHub

https://github.com/bcgit/bc-java/wiki/CVE-2026-12860

Vendor Advisories for CVE-2026-12860(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
bouncycastle1.68-2 ... 1.80-3 (12 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
bouncycastle1.72-2, 1.77-1, 1.80-1, 1.80-2, 1.80-3——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
bouncycastle1.80-3——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
bouncycastle1.80-3——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 86× 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 165 total refreshes for this CVE.

  1. 2026-09-19 08:01 UTCEG score recompute
  2. 2026-09-19 08:01 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 06:42 UTCEG score recompute
  5. 2026-09-18 06:42 UTCGHSA enrichment
  6. 2026-09-17 07:02 UTCEG score recompute
  7. 2026-09-17 07:02 UTCGHSA enrichment
  8. 2026-09-16 06:43 UTCEG score recompute
  9. 2026-09-16 06:43 UTCGHSA enrichment
  10. 2026-09-16 05:14 UTCEPSS rescore
  11. 2026-09-15 07:04 UTCEG score recompute
  12. 2026-09-15 07:04 UTCGHSA enrichment
  13. 2026-09-14 05:47 UTCEG score recompute
  14. 2026-09-14 05:47 UTCGHSA enrichment
  15. 2026-09-13 16:46 UTCEPSS rescore
  16. 2026-09-13 06:08 UTCEG score recompute
  17. 2026-09-13 06:08 UTCGHSA enrichment
  18. 2026-09-12 15:00 UTCEPSS rescore
  19. 2026-09-12 06:26 UTCEG score recompute
  20. 2026-09-12 06:26 UTCGHSA enrichment
  21. 2026-09-11 14:52 UTCEPSS rescore
  22. 2026-09-11 09:36 UTCEPSS rescore
  23. 2026-09-11 06:32 UTCEG score recompute
  24. 2026-09-11 06:32 UTCGHSA enrichment
  25. 2026-09-10 09:34 UTCEPSS rescore
Show 75 more
  1. 2026-09-10 06:52 UTCGHSA enrichment
  2. 2026-09-09 06:49 UTCEG score recompute
  3. 2026-09-09 06:49 UTCGHSA enrichment
  4. 2026-09-08 22:00 UTCEPSS rescore
  5. 2026-09-07 19:02 UTCEG score recompute
  6. 2026-09-07 19:02 UTCGHSA enrichment
  7. 2026-09-07 16:01 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-06 09:36 UTCEG score recompute
  10. 2026-09-06 09:36 UTCGHSA enrichment
  11. 2026-09-05 09:57 UTCEG score recompute
  12. 2026-09-05 09:57 UTCGHSA enrichment
  13. 2026-09-04 10:18 UTCEG score recompute
  14. 2026-09-04 10:18 UTCGHSA enrichment
  15. 2026-09-04 05:06 UTCEPSS rescore
  16. 2026-09-03 08:59 UTCEG score recompute
  17. 2026-09-03 08:59 UTCGHSA enrichment
  18. 2026-09-02 14:11 UTCEPSS rescore
  19. 2026-09-01 22:54 UTCEG score recompute
  20. 2026-09-01 22:54 UTCGHSA enrichment
  21. 2026-09-01 13:53 UTCEPSS rescore
  22. 2026-09-01 04:39 UTCEPSS rescore
  23. 2026-08-31 23:14 UTCGHSA enrichment
  24. 2026-08-30 21:45 UTCEG score recompute
  25. 2026-08-30 21:45 UTCGHSA enrichment
  26. 2026-08-30 19:17 UTCEPSS rescore
  27. 2026-08-30 01:21 UTCEPSS rescore
  28. 2026-08-29 22:06 UTCEG score recompute
  29. 2026-08-29 22:05 UTCGHSA enrichment
  30. 2026-08-28 21:40 UTCEPSS rescore
  31. 2026-08-28 16:57 UTCEG score recompute▼ 3.40
  32. 2026-08-28 16:56 UTCGHSA enrichment
  33. 2026-08-28 16:50 UTCNVD updateCVSS v3 → 5.3 · severity → MEDIUM
  34. 2026-08-27 20:04 UTCEG score recompute
  35. 2026-08-27 20:03 UTCGHSA enrichment
  36. 2026-08-27 14:24 UTCEPSS rescore
  37. 2026-08-27 08:44 UTCGHSA enrichment
  38. 2026-08-26 21:34 UTCEG score recompute
  39. 2026-08-26 21:34 UTCGHSA enrichment
  40. 2026-08-26 10:27 UTCGHSA enrichment
  41. 2026-08-25 23:22 UTCEG score recompute
  42. 2026-08-25 23:22 UTCGHSA enrichment
  43. 2026-08-25 13:48 UTCEPSS rescore
  44. 2026-08-25 11:48 UTCGHSA enrichment
  45. 2026-08-25 00:41 UTCEG score recompute
  46. 2026-08-25 00:40 UTCGHSA enrichment
  47. 2026-08-24 13:33 UTCEG score recompute
  48. 2026-08-24 13:33 UTCGHSA enrichment
  49. 2026-08-24 02:23 UTCGHSA enrichment
  50. 2026-08-23 14:59 UTCGHSA enrichment
  51. 2026-08-23 03:54 UTCEG score recompute
  52. 2026-08-23 03:54 UTCGHSA enrichment
  53. 2026-08-23 00:19 UTCEPSS rescore
  54. 2026-08-22 16:48 UTCGHSA enrichment
  55. 2026-08-22 05:42 UTCEG score recompute
  56. 2026-08-22 05:42 UTCGHSA enrichment
  57. 2026-08-21 23:48 UTCEPSS rescore
  58. 2026-08-21 18:36 UTCGHSA enrichment
  59. 2026-08-21 07:30 UTCEG score recompute
  60. 2026-08-21 07:30 UTCGHSA enrichment
  61. 2026-08-20 22:55 UTCEPSS rescore
  62. 2026-08-20 20:24 UTCGHSA enrichment
  63. 2026-08-20 09:18 UTCGHSA enrichment
  64. 2026-08-19 22:13 UTCEG score recompute
  65. 2026-08-19 22:13 UTCGHSA enrichment
  66. 2026-08-19 17:03 UTCEPSS rescore
  67. 2026-08-19 11:04 UTCGHSA enrichment
  68. 2026-08-18 23:57 UTCGHSA enrichment
  69. 2026-08-18 12:51 UTCGHSA enrichment
  70. 2026-08-18 01:40 UTCGHSA enrichment
  71. 2026-08-17 14:35 UTCEG score recompute
  72. 2026-08-17 14:35 UTCGHSA enrichment
  73. 2026-08-17 03:29 UTCGHSA enrichment
  74. 2026-08-16 16:23 UTCEG score recompute
  75. 2026-08-16 16:23 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-12860?
CVE-2026-12860 is a medium vulnerability published on August 3, 2026. In Bouncy Castle for Java before 1.85, RSA PKCS#1 verification skips last two hash bytes in NULL-omitted path. This issue also affects Bouncy Castle for Java LTS before 2.73.12.
When was CVE-2026-12860 disclosed?
CVE-2026-12860 was first published in the National Vulnerability Database on August 3, 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-2026-12860 actively exploited?
CVE-2026-12860 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 96.1% of all scored CVEs.
What is the CVSS score of CVE-2026-12860?
CVE-2026-12860 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-12860?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12860, 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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