Medium
opendkim — security advisory
A security flaw has been discovered in Trusted Domain Project OpenDKIM up to 2.11.0. The impacted element is the function dkim_process_set of the file dkim.c of the component Tag Tokenizer. Performing a manipulation results in use of less trusted source. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
- Products
- opendkim
- Affected versions
- 2.10.3-3build1, 2.11.0~alpha-10, 2.11.0~alpha-11, 2.11.0~alpha-11build1, 2.11.0~alpha-12, 2.11.0~alpha-13, 2.11.0~alpha-14, 2.11.0~beta2-1, 2.11.0~beta2-4build1, 2.11.0~beta2-5, 2.11.0~beta2-6, 2.11.0~beta2-8, 2.11.0~beta2-9, 2.11.0~beta2-9.2, 2.11.0~beta2-9.2build1, 2.11.0~beta2-9.2build2, 2.11.0~beta2-9build3, 2.11.0~beta2-9build4
- Fixed versions
- Not specified
- CVEs
- CVE-2026-101277
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:56 UTC · Revision 1
Source evidence
A security flaw has been discovered in Trusted Domain Project OpenDKIM up to 2.11.0. The impacted element is the function dkim_process_set of the file dkim.c of the component Tag Tokenizer. Performing a manipulation results in use of less trusted source. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
osv:UBUNTU-CVE-2026-101277
opendkim
Fixed versions: Not specified
opendkim
Fixed versions: Not specified
opendkim
Fixed versions: Not specified
opendkim
Fixed versions: Not specified
opendkim
Fixed versions: Not specified
opendkim
Fixed versions: Not specified
opendkim
Fixed versions: Not specified
Complete source record
{
"id": "2e03e7a677d4325d558de129dcd518cb4556a4c8e8b9c899ad3756682e529a08",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-101277",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-101277",
"summary": "A security flaw has been discovered in Trusted Domain Project OpenDKIM up to 2.11.0. The impacted element is the function dkim_process_set of the file dkim.c of the component Tag Tokenizer. Performing a manipulation results in use of less trusted source. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.",
"evidence": "osv:UBUNTU-CVE-2026-101277",
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"severity": "medium",
"structured": {
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"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
},
{
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},
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"ecosystem_specific": {
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"ecosystem_specific": {
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{
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],
"modified": "2026-10-17T12:57:54.496563154Z",
"provider": "osv",
"upstream": [
"CVE-2026-101277"
],
"references": [
"https://ubuntu.com/security/CVE-2026-101277",
"https://www.cve.org/CVERecord?id=CVE-2026-101277",
"https://vuldb.com/cve/CVE-2026-101277",
"https://vuldb.com/submit/918270",
"https://vuldb.com/vuln/411034",
"https://vuldb.com/vuln/411034/cti",
"https://xuyongzhe-vt.github.io/share/opendkim-tag-parser-desync.html"
]
},
"related_cves": [
{
"value": "CVE-2026-101277",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 357714,
"published_at": "2026-09-29T00:17:00+00:00"
}