CVE-2025-64184 json
Dosage vulnerable to Directory Traversal through crafted HTTP responses
published last yr. modified 4mo ago also GHSA-4vcx-3pj3-44m7 , PYSEC-2026-1316 , EUVD-2025-37861
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
Dosage is a comic strip downloader and archiver. When downloading comic images in versions 3.1 and below, Dosage constructs target file names from different aspects of the remote comic (page URL, image URL, page content, etc.). While the basename is properly stripped of directory-traversing characters, the file extension is taken from the HTTP Content-Type header. This allows a remote attacker (or a Man-in-the-Middle, if the comic is served over HTTP) to write arbitrary files outside the target directory (if additional conditions are met). This issue is fixed in version 3.2.
Patch / fix
Is CVE-2025-64184 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | dosage | <3.2 |
3.2 |
Affected products
- webcomics dosage
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/webcomics/dosage/commit/336a9684191604bc49eed7296b74bd582151181e
web
-
github.com
/webcomics/dosage/security/advisories/GHSA-4vcx-3pj3-44m7
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-64184
advisory
-
github.com
/webcomics/dosage
package
-
pypi.org
/project/dosage
package
-
github.com
/advisories/GHSA-4vcx-3pj3-44m7
advisory
Sources
- CVE List CVE-2025-64184
- GitHub Advisory GHSA-4vcx-3pj3-44m7
- NVD CVE-2025-64184
- OSV PYSEC-2026-1316
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.