{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52796", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-08T18:02:19.731Z", "datePublished": "2026-06-24T20:13:11.884Z", "dateUpdated": "2026-06-25T20:10:28.834Z"}, "containers": {"cna": {"title": "Gogs: DoS in rendering issue index pattern", "problemTypes": [{"descriptions": [{"cweId": "CWE-1336", "lang": "en", "description": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.5, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/gogs/gogs/security/advisories/GHSA-4j89-2c4f-44c6", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/gogs/gogs/security/advisories/GHSA-4j89-2c4f-44c6"}], "affected": [{"vendor": "gogs", "product": "gogs", "versions": [{"version": "< 0.14.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-24T20:13:11.884Z"}, "descriptions": [{"lang": "en", "value": "Gogs is an open source self-hosted Git service. Prior to 0.14.3, specially crafted issue index pattern can cause a panic when rendering, resulting in denial of service. In internal/markup/markup.go, RenderIssueIndexPattern renders the issue index pattern to a link using com.Expand, which is not safe: when the configured pattern contains an opening brace { but no closing brace }, strings.Index(template, \"}\") returns -1 and the subsequent slice template[:-1] triggers a panic. Once such a pattern is set, any page in the affected repository that contains an issue index reference such as #1 becomes unavailable. This vulnerability is fixed in 0.14.3."}], "source": {"advisory": "GHSA-4j89-2c4f-44c6", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/gogs/gogs/security/advisories/GHSA-4j89-2c4f-44c6", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-25T20:10:04.777866Z", "id": "CVE-2026-52796", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-25T20:10:28.834Z"}}]}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.14.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "gogs", "source": "cna", "vendor": "gogs"}, "product": "gogs", "vendor": "gogs"}], "created": "2026-06-24T21:45:15.819122+00:00", "updated": "2026-06-25T05:45:02.762887+00:00", "vendors": ["gogs", "gogs$PRODUCT$gogs"]}