CVE catalog
CVE-2026-101279
A security vulnerability has been detected in Trusted Domain Project OpenDMARC up to 1.4.2. This impacts an unknown function of the file libopendmarc/opendmarc_policy.c of the component DMARC Parser.
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.33% · Oct 25, 2026
A security vulnerability has been detected in Trusted Domain Project OpenDMARC up to 1.4.2. This impacts an unknown function of the file libopendmarc/opendmarc_policy.c of the component DMARC Parser. The manipulation of the argument pct leads to integer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | opendmarc | sid | 1.4.2-5.1 | vulnerable |
| Debian | opendmarc | forky | 1.4.2-5.1 | vulnerable |
| Debian | opendmarc | trixie | 1.4.2-5 | vulnerable |
| Debian | opendmarc | bookworm | 1.4.2-2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | opendmarc | source | sid | (unfixed) | not yet assigned | Not reported | [1149876] |
| Debian | opendmarc | source | forky | (unfixed) | not yet assigned | Not reported | [1149876] |
| Debian | opendmarc | source | trixie | (unfixed) | not yet assigned | Not reported | [1149876] |
| Debian | opendmarc | source | bookworm | (unfixed) | not yet assigned | Not reported | [1149876] |
Notes
[trixie] opendmarc: Minor issue [bookworm] opendmarc: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libopendmarc2]Affected
Source package: [opendmarc]
Details (2)
1.4.2-2+b1· amd64 · bookwormAffected
nvd · opendmarc · debian · bookworm; nvd · opendmarc · debian · 12
1.4.2-2+b1· arm64 · bookwormAffected
nvd · opendmarc · debian · bookworm; nvd · opendmarc · debian · 12
- [libopendmarc-dev]Affected
Source package: [opendmarc]
Details (2)
1.4.2-2+b1· amd64 · bookwormAffected
nvd · opendmarc · debian · bookworm; nvd · opendmarc · debian · 12
1.4.2-2+b1· arm64 · bookwormAffected
nvd · opendmarc · debian · bookworm; nvd · opendmarc · debian · 12
- [opendmarc]Affected
Source package: [opendmarc]
Details (2)
1.4.2-2+b1· amd64 · bookwormAffected
nvd · opendmarc · debian · bookworm; nvd · opendmarc · debian · 12
1.4.2-2+b1· arm64 · bookwormAffected
nvd · opendmarc · debian · bookworm; nvd · opendmarc · debian · 12
[Debian 13 (Trixie)]
- [libopendmarc2t64]Affected
Source package: [opendmarc]
Details (2)
1.4.2-5· amd64 · trixieAffected
nvd · opendmarc · debian · 13
1.4.2-5· arm64 · trixieAffected
nvd · opendmarc · debian · 13
- [libopendmarc-dev]Affected
Source package: [opendmarc]
Details (2)
1.4.2-5· amd64 · trixieAffected
nvd · opendmarc · debian · 13
1.4.2-5· arm64 · trixieAffected
nvd · opendmarc · debian · 13
- [opendmarc]Affected
Details (2)
1.4.2-5· amd64 · trixieAffected
nvd · opendmarc · debian · 13
1.4.2-5· arm64 · trixieAffected
nvd · opendmarc · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-101279]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-101279]
- [https://security-tracker.debian.org/tracker/CVE-2026-101279]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101279.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]