CVE-2026-8149

MEDIUMNVD 5.15.1—Trending — 3 sources updated this week

5.1

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: 0.4%
KEV: Not listed

Published

May 8, 2026

Last Modified

May 19, 2026

References (1)

91579145-5d7b-4cc5-b925-a0262ff19630https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%908149

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.

GHSA-mx76-r943-rf8g
GitHub Security AdvisoriesMedium
Bouncy Castle has a vulnerability in program files gcm128w, gcm512w

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
maven	org.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)

Package	Vulnerable range	Fixed in	Dependents
org.bouncycastle:bc-fips	2.1.0, 2.1.1, 2.1.2	—	—

Weakness Classification(1)

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

CWE-1068

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-03 10:46 UTCEG score recompute
2026-06-03 10:46 UTCGHSA enrichment
2026-06-02 20:13 UTCepss_batch
2026-06-02 09:33 UTCEG score recompute
2026-06-02 09:33 UTCGHSA enrichment
2026-06-01 13:52 UTCepss_batch
2026-06-01 08:20 UTCEG score recompute
2026-06-01 08:20 UTCGHSA enrichment
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-23 00:07 UTCEG score recompute
2026-05-21 22:43 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 13:46 UTCEG score recompute
2026-05-20 13:46 UTCGHSA enrichment
2026-05-20 11:22 UTCepss_batch

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 0.4% 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-8149

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