FKIE_CVE-2026-70406
Vulnerability from fkie_nvd - Published: 2026-10-14 15:17 - Updated: 2026-10-14 16:17
Severity
Summary
Gitea's shared comparison helper omits the token repository-access check used when updating pull requests. A public-only token with read:repository scope can route a comparison or pull request creation through a public base repository and retrieve commit history and diffs from a private head repository accessible to the token owner. This bypasses the token's public-only restriction; it does not remove the account's underlying repository permission checks.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"packageName": "code.gitea.io/gitea",
"product": "Gitea",
"vendor": "Gitea",
"versions": [
{
"lessThanOrEqual": "1.27.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Gitea\u0027s shared comparison helper omits the token repository-access check used when updating pull requests. A public-only token with read:repository scope can route a comparison or pull request creation through a public base repository and retrieve commit history and diffs from a private head repository accessible to the token owner. This bypasses the token\u0027s public-only restriction; it does not remove the account\u0027s underlying repository permission checks."
}
],
"id": "CVE-2026-70406",
"lastModified": "2026-10-14T16:17:52.077",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-70406",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-14T14:54:29.357945Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-10-14T15:17:22.570",
"references": [
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://blog.gitea.com/release-of-1.27.3/"
},
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/pull/39006"
},
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/pull/39013"
},
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/releases/tag/v1.27.3"
},
{
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-m78w-jjjx-gp8r"
}
],
"sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-863"
}
],
"source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
"type": "Secondary"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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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.
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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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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.