DEBIAN-CVE-2026-12803

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Source
https://security-tracker.debian.org/tracker/CVE-2026-12803
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12803.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-12803
Upstream
Published
2026-08-03T04:16:39Z
Modified
2026-09-14T17:01:52Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

In Bouncy Castle for Java before 1.85, KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD forgery). This issue also affects Bouncy Castle for Java LTS before 2.73.12.

References

Affected packages

Debian:12 / bouncycastle

Package

Name
bouncycastle
Purl
pkg:deb/debian/bouncycastle?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.72-2
1.77-1
1.80-1
1.80-2
1.80-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12803.json"

Debian:13 / bouncycastle

Package

Name
bouncycastle
Purl
pkg:deb/debian/bouncycastle?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.80-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12803.json"

Debian:14 / bouncycastle

Package

Name
bouncycastle
Purl
pkg:deb/debian/bouncycastle?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.80-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12803.json"