Description
Directory traversal vulnerability in webfs before 1.20 allows remote attackers to read arbitrary files via .. (dot dot) sequences in a Hostname header.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | webfs | 1.20 | — |
| Debian 13 | webfs | 1.20 | — |
| Debian 12 | webfs | 1.20 | — |
| Debian 3.0 | webfs | 1.17.2 | DSA-392 |
Advisories 1
- DSA-392 webfs - buffer overflows, file and directory exposure Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-392 vendor-advisory