CVE-2026-107686 (GCVE-0-2026-107686)
Vulnerability from cvelistv5 – Published: 2026-10-18 18:56 – Updated: 2026-10-19 20:15
VLAI
EPSS
VEX
Title
Gitea reactions accepted on locked issues and comments
Summary
The Gitea web handlers for adding and removing reactions on issues and comments did not refuse locked issues for users without write access, although the API did. A signed-in user who could read an issue could therefore add or remove reactions on a locked issue and its comments, bypassing the interaction restriction of the lock. Only reactions were affected; no content could be changed.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 20:15 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/go-gitea/gitea/security/adviso… | vendor-advisory |
| https://github.com/go-gitea/gitea/pull/39839 | patch |
| https://github.com/go-gitea/gitea/pull/39847 | patch |
| https://blog.gitea.com/release-of-28.2.0/ | release-notes |
| https://github.com/go-gitea/gitea/releases/tag/v28.2.0 | release-notes |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
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"id": "CVE-2026-107686",
"options": [
{
"Exploitation": "none"
},
{
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},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-19T20:15:54.397604Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-19T20:15:58.164Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageName": "gitea.dev",
"product": "Gitea",
"vendor": "Gitea",
"versions": [
{
"lessThanOrEqual": "28.1.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "https://github.com/hariprasanth9317-tech"
},
{
"lang": "en",
"type": "remediation developer",
"value": "https://github.com/silverwind"
},
{
"lang": "en",
"type": "remediation developer",
"value": "https://github.com/wxiaoguang"
},
{
"lang": "en",
"type": "remediation developer",
"value": "https://github.com/bircni"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Gitea web handlers for adding and removing reactions on issues and comments did not refuse locked issues for users without write access, although the API did. A signed-in user who could read an issue could therefore add or remove reactions on a locked issue and its comments, bypassing the interaction restriction of the lock. Only reactions were affected; no content could be changed."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-18T18:56:59.087Z",
"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"shortName": "Gitea"
},
"references": [
{
"name": "GitHub Security Advisory GHSA-wx44-9m3m-rjqx",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-wx44-9m3m-rjqx"
},
{
"name": "Fix: go-gitea/gitea pull request #39839",
"tags": [
"patch"
],
"url": "https://github.com/go-gitea/gitea/pull/39839"
},
{
"name": "Fix backport to release/v28: go-gitea/gitea pull request #39847",
"tags": [
"patch"
],
"url": "https://github.com/go-gitea/gitea/pull/39847"
},
{
"name": "Gitea 28.2.0 release announcement",
"tags": [
"release-notes"
],
"url": "https://blog.gitea.com/release-of-28.2.0/"
},
{
"name": "go-gitea/gitea v28.2.0 release",
"tags": [
"release-notes"
],
"url": "https://github.com/go-gitea/gitea/releases/tag/v28.2.0"
}
],
"title": "Gitea reactions accepted on locked issues and comments"
}
},
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"datePublished": "2026-10-18T18:56:59.087Z",
"dateReserved": "2026-10-14T20:08:45.849Z",
"dateUpdated": "2026-10-19T20:15:58.164Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
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"date": "2026-10-21",
"epss": "0.00237",
"percentile": "0.13901"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
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"packageName": "gitea.dev",
"product": "Gitea",
"vendor": "Gitea",
"versions": [
{
"lessThanOrEqual": "28.1.0",
"status": "affected",
"version": "0",
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}
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"source": "88ee5874-cf24-4952-aea0-31affedb7ff2"
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"cveTags": [],
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}
],
"id": "CVE-2026-107686",
"lastModified": "2026-10-19T21:17:04.633",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
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"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"options": [
{
"exploitation": "none"
},
{
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},
{
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-19T20:15:54.397604Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-10-18T19:16:32.903",
"references": [
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://blog.gitea.com/release-of-28.2.0/"
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{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/pull/39839"
},
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/pull/39847"
},
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/releases/tag/v28.2.0"
},
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"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-wx44-9m3m-rjqx"
}
],
"sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"vulnStatus": "Awaiting Analysis"
}
},
"vulnrichment": {
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"version": "2.0.3"
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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},
"title": "CISA ADP Vulnrichment"
}
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{
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"packageName": "gitea.dev",
"product": "Gitea",
"vendor": "Gitea",
"versions": [
{
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"version": "0",
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"value": "https://github.com/hariprasanth9317-tech"
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"type": "remediation developer",
"value": "https://github.com/silverwind"
},
{
"lang": "en",
"type": "remediation developer",
"value": "https://github.com/wxiaoguang"
},
{
"lang": "en",
"type": "remediation developer",
"value": "https://github.com/bircni"
}
],
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"lang": "en",
"value": "The Gitea web handlers for adding and removing reactions on issues and comments did not refuse locked issues for users without write access, although the API did. A signed-in user who could read an issue could therefore add or remove reactions on a locked issue and its comments, bypassing the interaction restriction of the lock. Only reactions were affected; no content could be changed."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-18T18:56:59.087Z",
"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"shortName": "Gitea"
},
"references": [
{
"name": "GitHub Security Advisory GHSA-wx44-9m3m-rjqx",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-wx44-9m3m-rjqx"
},
{
"name": "Fix: go-gitea/gitea pull request #39839",
"tags": [
"patch"
],
"url": "https://github.com/go-gitea/gitea/pull/39839"
},
{
"name": "Fix backport to release/v28: go-gitea/gitea pull request #39847",
"tags": [
"patch"
],
"url": "https://github.com/go-gitea/gitea/pull/39847"
},
{
"name": "Gitea 28.2.0 release announcement",
"tags": [
"release-notes"
],
"url": "https://blog.gitea.com/release-of-28.2.0/"
},
{
"name": "go-gitea/gitea v28.2.0 release",
"tags": [
"release-notes"
],
"url": "https://github.com/go-gitea/gitea/releases/tag/v28.2.0"
}
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"title": "Gitea reactions accepted on locked issues and comments"
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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