Vulnerability GO-2026-4970
Unknown
UNKNOWN RISK
Vulnerabilities without an assigned CVSS score. Severity is not determinable from available data.
4 months ago
July 07, 2026 at 09:34 PM UTC
Root escape via symlink plus trailing slash in os
<1.25.12, >=1.26.0-0 <1.26.5, >=1.27.0-0 <1.27.0-rc.2
<1.25.12, >=1.26.0-0 <1.26.5, >=1.27.0-0 <1.27.0-rc.2
Summary
Root escape via symlink plus trailing slash in os
Details
On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /.
For example, 'root.Open("symlink/")' will open "symlink" even when "symlink" is a symbolic link pointing outside of the root.
References
Related Vulnerabilities
Other vulnerabilities affecting the same packages
Unknown
3 days ago
HTTP/1 server crash due to MaxBytesReader header race in net/http
<1.26.11, >=1.27.0-0 <1.27.4 GO-2026-6859
<1.26.11, >=1.27.0-0 <1.27.4 GO-2026-6859
Unknown
24 days ago
Distrust compromised intermediate certificates in crypto/x509
<1.26.10, >=1.27.0-0 <1.27.3 GO-2026-6809
<1.26.10, >=1.27.0-0 <1.27.3 GO-2026-6809
Unknown
1 month ago
Reset context tracking on consecutive template expressions in html/template
<1.26.9, >=1.27.0-0 <1.27.2 GO-2026-6599
<1.26.9, >=1.27.0-0 <1.27.2 GO-2026-6599
Unknown
1 month ago
Recognize yield as regexp preceder keyword in html/template
<1.26.9, >=1.27.0-0 <1.27.2 GO-2026-6600
<1.26.9, >=1.27.0-0 <1.27.2 GO-2026-6600
Unknown
1 month ago
HTTP/2 server memory exhaustion due to Trailer headers in net/http
<1.26.9, >=1.27.0-0 <1.27.2 GO-2026-6603
<1.26.9, >=1.27.0-0 <1.27.2 GO-2026-6603
Impacted packages
Timeline
Published
4 months ago
July 07, 2026 at 09:34 PM UTC
Last Modified
6 hours ago
November 14, 2026 at 01:12 PM UTC