DEBIAN-CVE-2026-107891

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Source
https://security-tracker.debian.org/tracker/CVE-2026-107891
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-107891.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-107891
Upstream
Published
2026-11-05T16:17:32Z
Modified
2026-11-06T05:00:16Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

musl libc before 1.2.7, when an untrusted regular expression is used with regcomp, has multiple integer overflows, possibly leading to incorrect allocation sizes and out-of-bounds heap writes.

References

Affected packages

Debian:12 / musl

Package

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

Affected ranges

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

Affected versions

1.*
1.2.3-1
1.2.4-1
1.2.4-2
1.2.5-1
1.2.5-1.1
1.2.5-2
1.2.5-3
1.2.5-3.1~deb13u1
1.2.5-3.1
1.2.6-1
1.2.6-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-107891.json"

Debian:13 / musl

Package

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

Affected ranges

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

Affected versions

1.*
1.2.5-3
1.2.5-3.1~deb13u1
1.2.5-3.1
1.2.6-1
1.2.6-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-107891.json"

Debian:14 / musl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.2.6-2

Affected versions

1.*
1.2.5-3
1.2.5-3.1~deb13u1
1.2.5-3.1
1.2.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-107891.json"