CVE-2026-59650

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: 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, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
57(Track)
EG Risk 57/100SSVC: 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
Severity93% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

August 3, 2026

Last Modified

August 4, 2026

Advisory Details (2)

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

commit daeaae9d7075 (bcgit/bc-java)

Fix landed in bcgit/bc-java commit daeaae9d7075 — awaiting tagged release

https://github.com/bcgit/bc-java/commit/daeaae9d7075d04f40812e68671ebf4c777b5148
generic

Home · bcgit/bc-java Wiki · GitHub

https://github.com/bcgit/bc-java/wiki/CVE-2026-59650

Vendor Advisories for CVE-2026-59650(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 57× in last 7d / 152× 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 152 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59650?
CVE-2026-59650 is a critical vulnerability published on August 3, 2026. In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12.
When was CVE-2026-59650 disclosed?
CVE-2026-59650 was first published in the National Vulnerability Database on August 3, 2026, with the most recent update on August 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59650 actively exploited?
CVE-2026-59650 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 81.8% of all scored CVEs.
What is the CVSS score of CVE-2026-59650?
CVE-2026-59650 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-59650?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59650, 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-2026-59650

Explore →

Is Your Infrastructure Affected by CVE-2026-59650?

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

Start Free Scan →Browse All CVEs