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Fencer Intel
high 7.5

CVE-2026-58061 json

CCM-family modes write plaintext to caller buffer before tag check

published 3mo ago modified 2mo ago also EUVD-2026-52090

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits
0
none known

Summary

In Bouncy Castle for Java before 1.85, CCM-family modes write plaintext to caller buffer before tag check. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).

Patch / fix

  • Legion of the Bouncy Castle Inc. BC-JAVA 1.85
  • Legion of the Bouncy Castle Inc. BC-LTS-JAVA 2.73.12
  • Legion of the Bouncy Castle Inc. BC-FJA 1.0.2.7, 2.0.2, 2.1.3
  • bouncycastle Debian 14 1.86-1

debian advisories DEBIAN-CVE-2026-58061

  • bouncycastle SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +8 more 1.85-150200.3.38.1
  • bouncycastle SLES 16.0, SLES for SAP applications 16.0 1.85-160000.1.1

suse advisories SUSE-SU-2026:3559-1SUSE-SU-2026:23127-1SUSE-SU-2026:23150-1

  • bouncycastle openSUSE Leap 16.0 1.85-160000.1.1
  • bouncycastle openSUSE Tumbleweed 1.85-1.1

opensuse advisories openSUSE-SU-2026:21538-1openSUSE-SU-2026:11445-1

Is CVE-2026-58061 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2026-58061 updated cvss 7.5

org.bouncycastle/bc-java: org.bouncycastle/bc-fja: Bouncy Castle for Java: Integrity bypass in CCM-family modes

  • Red Hat AMQ Broker 7 bcprov-jdk18on Red Hat build of Apache Camel for Spring Boot 4 bcprov-jdk18on Red Hat build of Apicurio Registry 3 bcprov-lts8on
    affected: workaround, no fix available
  • Red Hat Ceph Storage 9 libarrow, parquet-libs Red Hat Fuse 7 bcpg-jdk15on, bcpg-jdk18on, bctls-jdk18on, bcmail-jdk15on, bcmail-jdk18on, bcpkix-jdk15on, +7 more Red Hat JBoss Enterprise Application Platform 7 bcpg-jdk15on, bcpg-jdk18on, bcmail-jdk15on, bcmail-jdk18on, bcpkix-jdk15on, bcpkix-jdk18on, +6 more Red Hat Single Sign-On 7 bcpg-jdk18on, bcmail-jdk18on, bcpkix-jdk18on, bcprov-jdk18on, bcutil-jdk18on
    affected: workaround, no fix available “Fix deferred”
  • Red Hat JBoss EAP 8.1 for RHEL 8 eap8-neethi 3.2.4-1.redhat_00001.1.el8eap, eap8-apache-sshd 2.20.0-1.redhat_00002.1.el8eap, eap8-wildfly 8.1.9.1-1.GA_redhat_00006.1.el8eap, eap8-bouncycastle 1.86.0-1.redhat_00001.1.el8eap, eap8-bouncycastle-pg 1.86.0-1.redhat_00001.1.el8eap, eap8-ironjacamar 3.1.1-1.Final_redhat_00001.1.el8eap, +33 more Red Hat JBoss EAP 8.1 for RHEL 9 eap8-neethi 3.2.4-1.redhat_00001.1.el9eap, eap8-apache-sshd 2.20.0-1.redhat_00002.1.el9eap, eap8-wildfly 8.1.9.1-1.GA_redhat_00006.1.el9eap, eap8-bouncycastle 1.86.0-1.redhat_00001.1.el9eap, eap8-bouncycastle-pg 1.86.0-1.redhat_00001.1.el9eap, eap8-ironjacamar 3.1.1-1.Final_redhat_00001.1.el9eap, +33 more Red Hat JBoss EAP 8.1 for RHEL 10 eap8-neethi 3.2.4-1.redhat_00001.1.el10eap, eap8-apache-sshd 2.20.0-1.redhat_00002.1.el10eap, eap8-wildfly 8.1.9.1-1.GA_redhat_00006.1.el10eap, eap8-bouncycastle 1.86.0-1.redhat_00001.1.el10eap, eap8-bouncycastle-pg 1.86.0-1.redhat_00001.1.el10eap, eap8-ironjacamar 3.1.1-1.Final_redhat_00001.1.el10eap, +32 more
    fixed: vendor fix RHSA-2026:99018
  • Red Hat JBoss Enterprise Application Platform 8.1
    fixed: vendor fix RHSA-2026:99017
  • Red Hat AMQ Broker 7 bcpkix-jdk18on, bcutil-jdk18on 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 bcpkix-jdk18on, bcutil-jdk18on Red Hat Build of Keycloak bcpkix-jdk18on, bcprov-jdk18on, bcutil-jdk18on, rhbk/keycloak-rhel9 Red Hat build of Quarkus bcpkix-jdk18on, bcprov-jdk18on, bcutil-jdk18on Red Hat Enterprise Linux 8 resteasy, resteasy-javadoc
    +3 more products
    Red Hat Enterprise Linux 9 jmc, resteasy, pki-resteasy-core, pki-resteasy-client, pki-resteasy-jackson2-provider, pki-resteasy-servlet-initializer Red Hat JBoss Enterprise Application Platform 8 bcpkix-jdk18on, bcutil-jdk18on, bcjmail-jdk18on Red Hat JBoss Enterprise Application Platform Expansion Pack bcpg-jdk18on, bcpkix-jdk18on, bcprov-jdk18on, bcutil-jdk18on, bcjmail-jdk18on
    not affected: vulnerable code not present

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
3mo ago

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/U:Amber
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/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:X/AU:X/R:X/V:X/RE:X/U:Amber
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

  • Legion of the Bouncy Castle Inc. BC-JAVA
  • Legion of the Bouncy Castle Inc. BC-LTS-JAVA
  • Legion of the Bouncy Castle Inc. BC-FJA

Classification

Weakness
  • CWE-354 Improper Validation of Integrity Check Value

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.