PT-2026-50789 · Theonedev · Onedev

Publicado 2026-06-18 · Atualizado 2026-06-18 · CVE-2026-49248

NVD

CVSS v4.0

8.3

Alta

Vetor base

AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

OneDev is a Git server with CI/CD, kanban, and packages. In versions 15.0.6 and below, TarUtils.untar() creates symbolic links verbatim from TAR entry getLinkName() without validating whether the target is an absolute path. A subsequent file entry in the same archive traverses the symlink, writing to arbitrary server-side locations. This is exploitable by any authenticated user with CI Job write access — no admin interaction required. This is an incomplete fix bypass of CVE-2021-21251 (GHSA-2w6j-wc8c-9mq2): that patch blocked .. path segments but did not address absolute symlink targets. This issue has been fixed in version 15.0.7.

Correção

Enumeração de Fraquezas

CWE-61

Identificadores relacionados

CVE-2026-49248

Produtos afetados

Onedev

Referências · 3

• https://github.com/theonedev/onedev/commit/4f8684acebc4bfeefd3c7e23a34a4fd591cb27ad · Nota
• https://github.com/theonedev/onedev/security/advisories/GHSA-55g8-94r5-cj37 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-49248 · Nota de Segurança