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Fencer Intel
medium 6.3

CVE-2025-8916 json

Possible DOS in processing large name constraint structures in PKIXCertPathReveiwer

published last yr. modified last mo. also GHSA-4cx2-fc23-5wg6 , EUVD-2025-24555

cvss
6.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits
0
none known

Summary

Allocation of Resources Without Limits or Throttling vulnerability in Legion of the Bouncy Castle Inc. BC Java bcpkix on All (API modules), Legion of the Bouncy Castle Inc. BC Java bcprov on All (API modules), Legion of the Bouncy Castle Inc. BCPKIX FIPS bcpkix-fips on All (API modules) allows Excessive Allocation. This vulnerability is associated with program files https://github.Com/bcgit/bc-java/blob/main/pkix/src/main/java/org/bouncycastle/pkix/jcajce/PKIXCertPathReviewer.Java, https://github.Com/bcgit/bc-java/blob/main/prov/src/main/java/org/bouncycastle/x509/PKIXCertPathReviewer.Java.

This issue affects BC Java: from 1.44 through 1.78; BC Java: from 1.44 through 1.78; BCPKIX FIPS: from 1.0.0 through 1.0.7, from 2.0.0 through 2.0.7.

Patch / fix

  • maven org.bouncycastle:bcpkix-jdk15on 1.79
  • maven org.bouncycastle:bcpkix-jdk15to18 1.79
  • maven org.bouncycastle:bcpkix-jdk18on 1.79
  • maven org.bouncycastle:bcpkix-fips 1.0.8, 2.0.8
  • Siemens SIMATIC CN 4100 V5.0
  • bouncycastle Debian 14, Debian 13 1.80-1

debian advisories DEBIAN-CVE-2025-8916

  • bouncycastle Ubuntu Pro 24.04 LTS 1.77-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2025-8916

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2025-8916 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-8916 updated cvss 5.3

org.bouncycastle: BouncyCastle denial of service

  • Red Hat Cryostat 4 bcpkix-jdk18on, bcprov-jdk18on, bcutil-jdk18on Red Hat Logging Subsystem for Red Hat OpenShift bcpg-jdk15on, bcmail-jdk15on, bcpkix-jdk15on, bcprov-jdk15on Red Hat AMQ Broker 7 bcpkix-jdk15on, bcpkix-jdk18on, bcprov-jdk15on, bcprov-jdk18on, bcutil-jdk15on, bcutil-jdk18on Red Hat AMQ Clients bcpg-jdk18on, bctls-jdk15on, bcpkix-jdk15on, bcpkix-jdk18on, bcprov-jdk15on, bcprov-jdk18on, +2 more Red Hat build of Apache Camel 4 for Quarkus 3 bcpg-jdk18on, bcpkix-jdk18on, bcprov-jdk18on, bcutil-jdk18on Red Hat build of Apache Camel for Spring Boot 4 bcpg-jdk18on, bcmail-jdk18on, bcpkix-jdk15on, bcpkix-jdk18on, bcprov-jdk15on, bcprov-jdk18on, +3 more
    +18 more products
    Red Hat build of Apicurio Registry 3 bcpkix-jdk18on, bcprov-jdk18on, bcutil-jdk18on Red Hat build of Debezium 2 bcpkix-jdk15on, bcprov-jdk15on, bcutil-jdk15on, bcprov-ext-jdk15on Red Hat build of Debezium 3 bcpkix-jdk15on, bcpkix-jdk18on, bcprov-jdk15on, bcprov-jdk18on, bcutil-jdk15on, bcutil-jdk18on, +1 more Red Hat build of Quarkus bcpg-jdk18on, bcpkix-jdk18on, bcprov-jdk18on, bcutil-jdk18on Red Hat Data Grid 8 bcpg-jdk15on, bcpg-jdk18on, bctls-jdk15on, bcpkix-jdk15on, bcpkix-jdk18on, bcprov-jdk15on, +6 more Red Hat Enterprise Linux 8 resteasy, resteasy-javadoc Red Hat Enterprise Linux 9 jmc, resteasy, pki-resteasy-core, pki-resteasy-client, pki-resteasy-jackson2-provider, pki-resteasy-servlet-initializer Red Hat Fuse 7 bcpg-jdk15on, bcpg-jdk18on, bcprov-jdk16, bctls-jdk18on, bcmail-jdk15on, bcmail-jdk18on, +12 more Red Hat JBoss Enterprise Application Platform 7 bcmail-jdk15, bcpg-jdk15on, bcpg-jdk18on, bcprov-jdk15, bctls-jdk15on, bctls-jdk18on, +8 more Red Hat JBoss Enterprise Application Platform 8 bc-fips, bctls-fips, bcpkix-fips, bcmail-jdk15, bcpg-jdk15on, bcpg-jdk18on, +17 more Red Hat JBoss Enterprise Application Platform Expansion Pack bc-fips, bctls-fips, bcpkix-fips, bcmail-jdk15, bcpg-jdk15on, bcpg-jdk18on, +17 more Red Hat OpenShift AI (RHOAI) rhoai/odh-modelmesh-rhel8, rhoai/odh-modelmesh-rhel9 Red Hat OpenShift Dev Spaces devspaces/code-rhel9, devspaces/pluginregistry-rhel9, devspaces-tech-preview/idea-rhel9 Red Hat Process Automation 7 bcpg-jdk15on, bcmail-jdk15on, bcpkix-jdk15on, bcprov-jdk15on, bcpkix-jdk15to18, bcprov-jdk15to18, +1 more Red Hat Satellite 6 candlepin, candlepin-selinux Red Hat Single Sign-On 7 bcpg-jdk15on, bcmail-jdk15on, bcpkix-jdk15on, bcprov-jdk15on Red Hat streams for Apache Kafka 2 bcpg-jdk18on, bcpkix-jdk15on, bcpkix-jdk18on, bcprov-jdk15on, bcprov-jdk18on, bcutil-jdk15on, +1 more Red Hat streams for Apache Kafka 3 bcpg-jdk18on, bcpkix-jdk15on, bcpkix-jdk18on, bcprov-jdk15on, bcprov-jdk18on, bcutil-jdk15on, +1 more
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/S:P/R:U/RE:M/U:Amber
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:U/V:X/RE:M/U:Amber

Affected packages

ecosystem package affected fixed in
maven org.bouncycastle:bcpkix-jdk15on
>=1.44, <1.79
1.79
maven org.bouncycastle:bcpkix-jdk15to18
>=1.44, <1.79
1.79
maven org.bouncycastle:bcpkix-jdk18on
>=1.44, <1.79
1.79
maven org.bouncycastle:bcpkix-fips
>=1.0.0, <1.0.8
>=2.0.0, <2.0.8
1.0.8
2.0.8

Affected products

  • Legion of the Bouncy Castle Inc. BC Java
  • Legion of the Bouncy Castle Inc. BCPKIX FIPS
  • Siemens SIMATIC CN 4100

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.