CVE-2026-8149

MEDIUMNVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 95% 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, nvd
5.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.1Exploit: NoneExposed: 0

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

A vulnerability in Legion of the Bouncy Castle Inc. BC-LTS on Linux, X86_64, AVX, AVX-512f.

This vulnerability is associated with program files gcm128w, gcm512w.

This issue affects BC-LTS: from 2.73.0 before 2.73.11.

CVSS v3
5.1
EG Score
5.1(medium)
EPSS
5.3%
KEV
Not listed

Published

May 8, 2026

Last Modified

May 19, 2026

References (1)

Vendor Advisories for CVE-2026-8149(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
mavenorg.bouncycastle:bc-fips—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.bouncycastle:bc-fips2.1.0, 2.1.1, 2.1.2——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 44× 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.

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

Frequently asked(5)

What is CVE-2026-8149?
CVE-2026-8149 is a medium vulnerability published on May 8, 2026. A vulnerability in Legion of the Bouncy Castle Inc. BC-LTS on Linux, X86_64, AVX, AVX-512f. This vulnerability is associated with program files gcm128w, gcm512w. This issue affects BC-LTS: from 2.73.0 before 2.73.11.
When was CVE-2026-8149 disclosed?
CVE-2026-8149 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on May 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8149 actively exploited?
CVE-2026-8149 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8149?
CVE-2026-8149 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2026-8149?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8149, 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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