CVE-2026-25779 (GCVE-0-2026-25779)

Vulnerability from cvelistv5 – Published: 2026-07-03 20:19 – Updated: 2026-07-03 20:19
VLAI
Title
Gitea redirect handling permits open redirects through backslash paths
Summary
Gitea versions up to and including 1.25.4 allow redirect bypasses through raw or percent-encoded backslashes in redirect_to values.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Gitea Gitea Open Source Git Server Affected: 0 , ≤ 1.25.4 (semver)
Create a notification for this product.
Credits
quirmz
Show details on NVD website
To clipboard 

{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Gitea Open Source Git Server",
          "vendor": "Gitea",
          "versions": [
            {
              "lessThanOrEqual": "1.25.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "quirmz"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Gitea versions up to and including 1.25.4 allow redirect bypasses through raw or percent-encoded backslashes in redirect_to values."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-03T20:19:33.452Z",
        "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "shortName": "Gitea"
      },
      "references": [
        {
          "name": "GitHub Security Advisory",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-j5r2-4c8j-xc3m"
        },
        {
          "name": "GitHub Pull Request #36660",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/36660"
        },
        {
          "name": "GitHub Pull Request #36716",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/36716"
        },
        {
          "name": "Gitea v1.25.5 Release",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/go-gitea/gitea/releases/tag/v1.25.5"
        },
        {
          "name": "Gitea v1.25.5 Release Blog Post",
          "tags": [
            "release-notes"
          ],
          "url": "https://blog.gitea.com/release-of-1.25.5/"
        }
      ],
      "title": "Gitea redirect handling permits open redirects through backslash paths",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
    "assignerShortName": "Gitea",
    "cveId": "CVE-2026-25779",
    "datePublished": "2026-07-03T20:19:33.452Z",
    "dateReserved": "2026-02-22T15:13:33.665Z",
    "dateUpdated": "2026-07-03T20:19:33.452Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-25779",
      "date": "2026-07-04",
      "epss": "0.00167",
      "percentile": "0.06339"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-25779\",\"sourceIdentifier\":\"88ee5874-cf24-4952-aea0-31affedb7ff2\",\"published\":\"2026-07-03T21:16:57.923\",\"lastModified\":\"2026-07-03T21:16:57.923\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Gitea versions up to and including 1.25.4 allow redirect bypasses through raw or percent-encoded backslashes in redirect_to values.\"}],\"affected\":[{\"source\":\"88ee5874-cf24-4952-aea0-31affedb7ff2\",\"affectedData\":[{\"vendor\":\"Gitea\",\"product\":\"Gitea Open Source Git Server\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"1.25.4\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"weaknesses\":[{\"source\":\"88ee5874-cf24-4952-aea0-31affedb7ff2\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-601\"}]}],\"references\":[{\"url\":\"https://blog.gitea.com/release-of-1.25.5/\",\"source\":\"88ee5874-cf24-4952-aea0-31affedb7ff2\"},{\"url\":\"https://github.com/go-gitea/gitea/pull/36660\",\"source\":\"88ee5874-cf24-4952-aea0-31affedb7ff2\"},{\"url\":\"https://github.com/go-gitea/gitea/pull/36716\",\"source\":\"88ee5874-cf24-4952-aea0-31affedb7ff2\"},{\"url\":\"https://github.com/go-gitea/gitea/releases/tag/v1.25.5\",\"source\":\"88ee5874-cf24-4952-aea0-31affedb7ff2\"},{\"url\":\"https://github.com/go-gitea/gitea/security/advisories/GHSA-j5r2-4c8j-xc3m\",\"source\":\"88ee5874-cf24-4952-aea0-31affedb7ff2\"}]}}"
  }
}


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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

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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.


Detection rules are retrieved from Rulezet.