Trusted Domain Project OpenDMARC DMARC Record opendmarc_util.c opendmarc_util_cleanup off-by-one
Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.
cve-program · CVE-2026-101014
PublishedA vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_util_cleanup in the library libopendmarc/opendmarc_util.c of the component DMARC Record Parser. Performing a manipulation results in off-by-one. The attack may be initiated remotely. The exploit is now public and may be used. The patch is named b3b1da9264bc80324094a27c71e7369bdedc62ae. To fix this issue, it is recommended to deploy a patch.
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2026-101014 · CVE overview and exploitation status
cve-program · CVE-2026-101014
- https://vuldb.com/vuln/410884
- https://vuldb.com/vuln/410884/cti
- https://vuldb.com/cve/CVE-2026-101014
- https://vuldb.com/submit/917100
- https://github.com/trusteddomainproject/OpenDMARC/pull/188
- https://github.com/trusteddomainproject/OpenDMARC/pull/344
- https://weitongli.com/share/opendmarc-cleanup-off-by-one.html
- https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae
This historical advisory does not include today's related changes. Open the latest advisory to find current connections.