CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2021-43795
High (7.5) in linecorp armeria. EPSS 1.7% chance of exploitation in the next 30 days. Fixed in com.linecorp.armeria:armeria 1.13.4.
Armeria is an open source microservice framework. In affected versions an attacker can access an Armeria server's local file system beyond its restricted directory by sending an HTTP request whose path contains `%2F` (encoded `/`), such as `/files/..%2Fsecrets.txt`, bypassing Armeria's path validation logic. Armeria 1.13.4 or above contains the hardened path validation logic that handles `%2F` properly. This vulnerability can be worked around by inserting a decorator that performs an additional validation on the request path.
Severity
- EPSS
- 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linecorp:armeria
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8fp4-rp6c-5gcv | Maven | com.linecorp.armeria:armeria | >=1.12.0 <1.13.4 | 1.13.4 |
References
- https://github.com/line/armeria/commit/e2697a575e9df6692b423e02d731f293c1313284
- https://github.com/line/armeria/pull/3855
- https://github.com/line/armeria/security/advisories/GHSA-8fp4-rp6c-5gcv
- https://github.com/line/armeria/commit/e2697a575e9df6692b423e02d731f293c1313284
- https://github.com/line/armeria/pull/3855