CVE-2026-62999
- Source
- https://cve.org/CVERecord?id=CVE-2026-62999
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62999.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-62999
- Aliases
-
- GHSA-34mv-rjq9-5mch
- Published
- 2026-07-31T19:41:55Z
- Modified
- 2026-10-28T02:31:12Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Copier: Percent-encoded dot segments in template URLs can allow trusted-prefix escape (Incomplete fix for trust-prefix bypass)
- Details
-
Copier is a library and CLI app for rendering project templates. From 9.5.0 through 9.16.0, percent-encoded parent-directory segments or encoded path separators in a template URL can match a configured trusted repository prefix before an HTTP server or Git transport decodes the path, allowing unsafe template features from a repository outside the trusted prefix to run after user interaction. This issue is fixed in version 9.17.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-180", "CWE-22" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62999.json" }- References
-
- https://github.com/copier-org/copier/releases/tag/v9.17.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62999.json
- https://github.com/copier-org/copier/security/advisories/GHSA-34mv-rjq9-5mch
- https://nvd.nist.gov/vuln/detail/CVE-2026-62999
- https://github.com/copier-org/copier/commit/7408f0d6287a7bf452715fd9f25dc54eaba3c295
Affected packages
Git / github.com/copier-org/copier
Affected ranges
- Type
- GIT
- Repo
- https://github.com/copier-org/copier
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "9.5.0" }, { "last_affected": "9.16.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "7408f0d6287a7bf452715fd9f25dc54eaba3c295" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v9.17.0", "range": [ { "fixed": "02e1574b125bd6201b55c01aab23146489c89663" } ], "source": "REFERENCES_TAG" } ] }