CVE-2026-117649 (GCVE-0-2026-117649)

Vulnerability from cvelistv5 – Published: 2026-11-01 09:48 – Updated: 2026-11-01 09:48
VLAI
Title
Gitea private issue disclosure through issue dependency timeline events
Summary
The issue timeline API and the web issue page hid cross-reference events that point at issues the reader cannot access, but not "dependency added" and "dependency removed" events. When a readable issue had been linked as a dependency to an issue in a repository the reader cannot access, for example a private repository, any reader of the first issue, including anonymous users of a public repository, received the linked issue's current title, body, state, labels, poster and attachment names through the API, and its repository, number and title on the web page. Creating the link requires access to both issues; comments and attachment downloads of the linked issue stayed protected. Dependency events are now filtered with the same read permission check; a related exposure of unlinked attachment metadata through hidden dependency placeholders was already fixed in 28.2.0.
Severity
No CVSS data available.
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-862 - Missing Authorization
Assigner
Gitea CNA under the mitre root
CNA scorecard C 61/100 over 185 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Gitea Gitea Affected: 0 , < 28.3.0 (semver)
guessed Create a notification for this product.
Credits
https://github.com/d3do-23 https://github.com/kaveeshanirmal141 https://github.com/manus-pi https://github.com/baek9 https://github.com/bruhdev1290 https://github.com/yagcioglutoprak https://github.com/lunny https://github.com/bircni
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "gitea.dev",
          "product": "Gitea",
          "vendor": "Gitea",
          "versions": [
            {
              "lessThan": "28.3.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/d3do-23"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/kaveeshanirmal141"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/manus-pi"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/baek9"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/bruhdev1290"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/yagcioglutoprak"
        },
        {
          "lang": "en",
          "type": "analyst",
          "value": "https://github.com/lunny"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "https://github.com/bircni"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The issue timeline API and the web issue page hid cross-reference events that point at issues the reader cannot access, but not \"dependency added\" and \"dependency removed\" events. When a readable issue had been linked as a dependency to an issue in a repository the reader cannot access, for example a private repository, any reader of the first issue, including anonymous users of a public repository, received the linked issue\u0027s current title, body, state, labels, poster and attachment names through the API, and its repository, number and title on the web page. Creating the link requires access to both issues; comments and attachment downloads of the linked issue stayed protected. Dependency events are now filtered with the same read permission check; a related exposure of unlinked attachment metadata through hidden dependency placeholders was already fixed in 28.2.0."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            },
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-01T09:48:43.592Z",
        "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "shortName": "Gitea"
      },
      "references": [
        {
          "name": "GitHub Security Advisory GHSA-p86q-78gw-8f3f",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-p86q-78gw-8f3f"
        },
        {
          "name": "Fix: go-gitea/gitea pull request #39942",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/39942"
        },
        {
          "name": "Fix backport to release/v28: go-gitea/gitea pull request #40085",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/40085"
        },
        {
          "name": "Related fix (hidden dependency attachments, 28.2.0): go-gitea/gitea pull request #39839",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/39839"
        },
        {
          "name": "Related fix backport to release/v28 (28.2.0): go-gitea/gitea pull request #39847",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/39847"
        },
        {
          "name": "Gitea 28.3.0 release announcement",
          "tags": [
            "release-notes"
          ],
          "url": "https://blog.gitea.com/release-of-28.3.0/"
        },
        {
          "name": "go-gitea/gitea v28.3.0 release",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/go-gitea/gitea/releases/tag/v28.3.0"
        }
      ],
      "title": "Gitea private issue disclosure through issue dependency timeline events"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
    "assignerShortName": "Gitea",
    "cveId": "CVE-2026-117649",
    "datePublished": "2026-11-01T09:48:43.592Z",
    "dateReserved": "2026-11-01T08:50:49.238Z",
    "dateUpdated": "2026-11-01T09:48:43.592Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-117649",
      "date": "2026-11-04",
      "epss": "0.00206",
      "percentile": "0.107"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "packageName": "gitea.dev",
                "product": "Gitea",
                "vendor": "Gitea",
                "versions": [
                  {
                    "lessThan": "28.3.0",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The issue timeline API and the web issue page hid cross-reference events that point at issues the reader cannot access, but not \"dependency added\" and \"dependency removed\" events. When a readable issue had been linked as a dependency to an issue in a repository the reader cannot access, for example a private repository, any reader of the first issue, including anonymous users of a public repository, received the linked issue\u0027s current title, body, state, labels, poster and attachment names through the API, and its repository, number and title on the web page. Creating the link requires access to both issues; comments and attachment downloads of the linked issue stayed protected. Dependency events are now filtered with the same read permission check; a related exposure of unlinked attachment metadata through hidden dependency placeholders was already fixed in 28.2.0."
          }
        ],
        "id": "CVE-2026-117649",
        "lastModified": "2026-11-01T10:18:35.733",
        "metrics": {},
        "published": "2026-11-01T10:18:35.623",
        "references": [
          {
            "source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
            "url": "https://blog.gitea.com/release-of-28.3.0/"
          },
          {
            "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/pull/39942"
          },
          {
            "source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
            "url": "https://github.com/go-gitea/gitea/pull/40085"
          },
          {
            "source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
            "url": "https://github.com/go-gitea/gitea/releases/tag/v28.3.0"
          },
          {
            "source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
            "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-p86q-78gw-8f3f"
          }
        ],
        "sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-200"
              },
              {
                "lang": "en",
                "value": "CWE-862"
              }
            ],
            "source": "88ee5874-cf24-4952-aea0-31affedb7ff2",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-11-04T12:50:31+00:00",
      "cve": "CVE-2026-117649",
      "id": "CVE-2026-117649",
      "initial_release_date": "2026-11-01T09:48:43.592000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "code.gitea.io/gitea: Gitea: Information disclosure via unfiltered issue dependency events",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-117649.json",
      "version": "3"
    }
  }
}



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