DEBIAN-CVE-2026-2903

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Source
https://security-tracker.debian.org/tracker/CVE-2026-2903
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2903.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-2903
Upstream
Published
2026-02-22T01:16:00Z
Modified
2026-09-14T17:03:25Z
Severity
  • 1.9 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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:X CVSS Calculator
Summary
[none]
Details

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function check_and_merge_special_rules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name: febeb977936f9519a25d9fbd10ff8256358cdb97. It is suggested to install a patch to address this issue.

References

Affected packages

Debian:12 / re2c

Package

Name
re2c
Purl
pkg:deb/debian/re2c?arch=source&distro=bookworm

Affected ranges

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

Affected versions

3.*
3.0-2
3.1-1
4.*
4.0.1-1
4.0.2-1
4.1-1
4.2-1
4.3-1
4.3-2
4.3.1-1
4.4-1
4.5.1-1
4.6-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2903.json"

Debian:13 / re2c

Package

Name
re2c
Purl
pkg:deb/debian/re2c?arch=source&distro=trixie

Affected ranges

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

Affected versions

4.*
4.1-1
4.2-1
4.3-1
4.3-2
4.3.1-1
4.4-1
4.5.1-1
4.6-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2903.json"

Debian:14 / re2c

Package

Name
re2c
Purl
pkg:deb/debian/re2c?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.5.1-1

Affected versions

4.*
4.1-1
4.2-1
4.3-1
4.3-2
4.3.1-1
4.4-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2903.json"