CVE-2026-15055

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

Score 8.2 from GitHub Security Advisory published 2026-08-03. NVD baseline CVSS 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: 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, PKCS#8 / PBES2 decryptors honour unbounded KDF cost from input. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
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 7ab4ee67a013 (bcgit/bc-java)

Fix landed in bcgit/bc-java commit 7ab4ee67a013 — awaiting tagged release

https://github.com/bcgit/bc-java/commit/7ab4ee67a0135950001b29b41a96d8a9a5d3b68b
generic

Home · bcgit/bc-java Wiki · GitHub

https://github.com/bcgit/bc-java/wiki/CVE-2026-15055

Vendor Advisories for CVE-2026-15055(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 21× in last 7d / 89× 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 151 total refreshes for this CVE.

  1. 2026-09-20 11:08 UTCGHSA enrichment
  2. 2026-09-19 17:59 UTCEG score recompute
  3. 2026-09-19 17:59 UTCGHSA enrichment
  4. 2026-09-19 03:52 UTCEG score recompute
  5. 2026-09-19 03:52 UTCGHSA enrichment
  6. 2026-09-18 19:27 UTCEPSS rescore
  7. 2026-09-18 13:33 UTCGHSA enrichment
  8. 2026-09-18 01:13 UTCEG score recompute
  9. 2026-09-18 01:13 UTCGHSA enrichment
  10. 2026-09-17 01:17 UTCEG score recompute
  11. 2026-09-17 01:17 UTCGHSA enrichment
  12. 2026-09-16 14:07 UTCEPSS rescore
  13. 2026-09-16 05:28 UTCEG score recompute
  14. 2026-09-16 05:28 UTCGHSA enrichment
  15. 2026-09-16 05:14 UTCEPSS rescore
  16. 2026-09-15 17:09 UTCEG score recompute
  17. 2026-09-15 17:09 UTCGHSA enrichment
  18. 2026-09-15 02:06 UTCGHSA enrichment
  19. 2026-09-14 10:50 UTCGHSA enrichment
  20. 2026-09-13 22:30 UTCEG score recompute
  21. 2026-09-13 22:30 UTCGHSA enrichment
  22. 2026-09-13 16:46 UTCEPSS rescore
  23. 2026-09-13 10:11 UTCGHSA enrichment
  24. 2026-09-12 21:48 UTCEG score recompute
  25. 2026-09-12 21:48 UTCGHSA enrichment
Show 75 more
  1. 2026-09-12 15:00 UTCEPSS rescore
  2. 2026-09-12 09:28 UTCGHSA enrichment
  3. 2026-09-11 21:01 UTCEG score recompute
  4. 2026-09-11 21:01 UTCGHSA enrichment
  5. 2026-09-11 14:52 UTCEPSS rescore
  6. 2026-09-11 09:36 UTCEPSS rescore
  7. 2026-09-11 08:41 UTCGHSA enrichment
  8. 2026-09-10 20:22 UTCEG score recompute
  9. 2026-09-10 20:22 UTCGHSA enrichment
  10. 2026-09-10 09:34 UTCEPSS rescore
  11. 2026-09-10 08:01 UTCGHSA enrichment
  12. 2026-09-09 19:42 UTCGHSA enrichment
  13. 2026-09-09 06:53 UTCEG score recompute
  14. 2026-09-09 06:52 UTCGHSA enrichment
  15. 2026-09-08 22:00 UTCEPSS rescore
  16. 2026-09-07 19:05 UTCGHSA enrichment
  17. 2026-09-06 20:43 UTCEG score recompute
  18. 2026-09-06 20:43 UTCGHSA enrichment
  19. 2026-09-06 13:47 UTCEPSS rescore
  20. 2026-09-06 07:03 UTCGHSA enrichment
  21. 2026-09-05 18:42 UTCEG score recompute
  22. 2026-09-05 18:42 UTCGHSA enrichment
  23. 2026-09-05 04:32 UTCGHSA enrichment
  24. 2026-09-04 15:53 UTCEG score recompute
  25. 2026-09-04 15:53 UTCGHSA enrichment
  26. 2026-09-04 05:06 UTCEPSS rescore
  27. 2026-09-04 03:31 UTCGHSA enrichment
  28. 2026-09-03 08:59 UTCEG score recompute
  29. 2026-09-03 08:59 UTCGHSA enrichment
  30. 2026-09-02 14:11 UTCEPSS rescore
  31. 2026-09-01 22:21 UTCEG score recompute
  32. 2026-09-01 22:21 UTCGHSA enrichment
  33. 2026-09-01 13:53 UTCEPSS rescore
  34. 2026-09-01 04:39 UTCEPSS rescore
  35. 2026-08-31 23:17 UTCGHSA enrichment
  36. 2026-08-30 22:47 UTCEG score recompute
  37. 2026-08-30 22:47 UTCGHSA enrichment
  38. 2026-08-30 19:17 UTCEPSS rescore
  39. 2026-08-30 10:28 UTCEG score recompute
  40. 2026-08-30 10:28 UTCGHSA enrichment
  41. 2026-08-30 01:22 UTCEPSS rescore
  42. 2026-08-29 22:08 UTCEG score recompute
  43. 2026-08-29 22:08 UTCGHSA enrichment
  44. 2026-08-28 21:41 UTCEPSS rescore
  45. 2026-08-28 15:08 UTCEG score recompute▲ 2.90
  46. 2026-08-28 15:07 UTCGHSA enrichment
  47. 2026-08-28 15:06 UTCNVD updateCVSS v3 → 8.2 · severity → HIGH
  48. 2026-08-28 01:28 UTCEG score recompute
  49. 2026-08-28 01:28 UTCGHSA enrichment
  50. 2026-08-27 14:25 UTCEPSS rescore
  51. 2026-08-26 23:56 UTCEG score recompute
  52. 2026-08-26 23:56 UTCGHSA enrichment
  53. 2026-08-26 14:46 UTCEPSS rescore
  54. 2026-08-25 22:22 UTCEG score recompute
  55. 2026-08-25 22:22 UTCGHSA enrichment
  56. 2026-08-25 13:48 UTCEPSS rescore
  57. 2026-08-24 20:50 UTCEG score recompute
  58. 2026-08-24 20:50 UTCGHSA enrichment
  59. 2026-08-23 19:17 UTCEG score recompute
  60. 2026-08-23 19:17 UTCGHSA enrichment
  61. 2026-08-23 00:19 UTCEPSS rescore
  62. 2026-08-22 17:45 UTCEG score recompute
  63. 2026-08-22 17:45 UTCGHSA enrichment
  64. 2026-08-21 23:49 UTCEPSS rescore
  65. 2026-08-21 16:12 UTCEG score recompute
  66. 2026-08-21 16:12 UTCGHSA enrichment
  67. 2026-08-20 22:55 UTCEPSS rescore
  68. 2026-08-20 14:38 UTCEG score recompute
  69. 2026-08-20 14:38 UTCGHSA enrichment
  70. 2026-08-19 17:03 UTCEPSS rescore
  71. 2026-08-19 13:05 UTCEG score recompute
  72. 2026-08-19 13:05 UTCGHSA enrichment
  73. 2026-08-18 13:48 UTCEPSS rescore
  74. 2026-08-18 11:33 UTCEG score recompute
  75. 2026-08-18 11:33 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15055?
CVE-2026-15055 is a high vulnerability published on August 3, 2026. In Bouncy Castle for Java before 1.85, PKCS#8 / PBES2 decryptors honour unbounded KDF cost from input. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X…
When was CVE-2026-15055 disclosed?
CVE-2026-15055 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-2026-15055 actively exploited?
CVE-2026-15055 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 80.5% of all scored CVEs.
What is the CVSS score of CVE-2026-15055?
CVE-2026-15055 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-15055?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15055, 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-2026-15055

Explore →

Is Your Infrastructure Affected by CVE-2026-15055?

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

Start Free Scan →Browse All CVEs