CVE-2026-105267 (GCVE-0-2026-105267)
Vulnerability from cvelistv5 – Published: 2026-10-06 21:35 – Updated: 2026-10-07 20:02
VLAI
EPSS
VEX
Title
Gitea tag delete route deletes releases without release permission
Summary
The Gitea web route for deleting tags (`POST /{owner}/{repo}/tags/delete`) requires only write access to the Code unit, but shares its handler with release deletion and did not check that the target was a plain tag. A collaborator with Code write access and without Releases write access could permanently delete published releases of that repository, including their attachments. Protected tag rules covering the release tag still blocked the deletion.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 20:02 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/go-gitea/gitea/security/adviso… | vendor-advisory |
| https://github.com/go-gitea/gitea/pull/39501 | patch |
| https://github.com/go-gitea/gitea/pull/39507 | patch |
| https://blog.gitea.com/release-of-28.1.0/ | release-notes |
| https://github.com/go-gitea/gitea/releases/tag/v28.1.0 | release-notes |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-105267",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-07T20:02:28.853973Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
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"providerMetadata": {
"dateUpdated": "2026-10-07T20:02:51.066Z",
"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": "28.0.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
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}
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"credits": [
{
"lang": "en",
"type": "reporter",
"value": "https://github.com/N0K0"
},
{
"lang": "en",
"type": "remediation developer",
"value": "https://github.com/silverwind"
},
{
"lang": "en",
"type": "remediation developer",
"value": "https://github.com/bircni"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Gitea web route for deleting tags (`POST /{owner}/{repo}/tags/delete`) requires only write access to the Code unit, but shares its handler with release deletion and did not check that the target was a plain tag. A collaborator with Code write access and without Releases write access could permanently delete published releases of that repository, including their attachments. Protected tag rules covering the release tag still blocked the deletion."
}
],
"problemTypes": [
{
"descriptions": [
{
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"description": "CWE-732: Incorrect Permission Assignment for Critical Resource",
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"description": "CWE-863: Incorrect Authorization",
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"dateUpdated": "2026-10-06T21:35:35.508Z",
"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"shortName": "Gitea"
},
"references": [
{
"name": "GitHub Security Advisory GHSA-vvqw-mjq8-x248",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-vvqw-mjq8-x248"
},
{
"name": "Fix: go-gitea/gitea pull request #39501",
"tags": [
"patch"
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"url": "https://github.com/go-gitea/gitea/pull/39501"
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{
"name": "Fix backport to release/v28: go-gitea/gitea pull request #39507",
"tags": [
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"url": "https://github.com/go-gitea/gitea/pull/39507"
},
{
"name": "Gitea 28.1.0 release announcement",
"tags": [
"release-notes"
],
"url": "https://blog.gitea.com/release-of-28.1.0/"
},
{
"name": "go-gitea/gitea v28.1.0 release",
"tags": [
"release-notes"
],
"url": "https://github.com/go-gitea/gitea/releases/tag/v28.1.0"
}
],
"title": "Gitea tag delete route deletes releases without release permission"
}
},
"cveMetadata": {
"assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"assignerShortName": "Gitea",
"cveId": "CVE-2026-105267",
"datePublished": "2026-10-06T21:35:35.508Z",
"dateReserved": "2026-10-04T22:02:04.888Z",
"dateUpdated": "2026-10-07T20:02:51.066Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
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"date": "2026-10-07",
"epss": "0.00173",
"percentile": "0.06108"
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"nvd": {
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"packageName": "gitea.dev",
"product": "Gitea",
"vendor": "Gitea",
"versions": [
{
"lessThanOrEqual": "28.0.0",
"status": "affected",
"version": "0",
"versionType": "semver"
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Gitea web route for deleting tags (`POST /{owner}/{repo}/tags/delete`) requires only write access to the Code unit, but shares its handler with release deletion and did not check that the target was a plain tag. A collaborator with Code write access and without Releases write access could permanently delete published releases of that repository, including their attachments. Protected tag rules covering the release tag still blocked the deletion."
}
],
"id": "CVE-2026-105267",
"lastModified": "2026-10-07T21:17:11.073",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.2,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
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"timestamp": "2026-10-07T20:02:28.853973Z",
"version": "2.0.3"
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"published": "2026-10-06T22:17:02.253",
"references": [
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"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://blog.gitea.com/release-of-28.1.0/"
},
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/pull/39501"
},
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/pull/39507"
},
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/releases/tag/v28.1.0"
},
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"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
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"current_release_date": "2026-10-07T14:34:34+00:00",
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"initial_release_date": "2026-10-06T21:35:35.508000+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "code.gitea.io/gitea: Gitea: Unauthorized release deletion via tag deletion endpoint",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-105267.json",
"version": "3"
},
"vulnrichment": {
"containers": {
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"privilegesRequired": "LOW",
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"value": "https://github.com/silverwind"
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}
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},
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"release-notes"
],
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"title": "Gitea tag delete route deletes releases without release permission"
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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