CVE-2026-35592
CVE-2026-35592 is a medium-severity vulnerability in Pyload-ng Project Pyload-ng with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-19738
- Weakness: CWE-22
- Affected product: Pyload-ng Project Pyload-ng
- Published:
- Last modified:
Description
pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev97, the _safe_extractall() function in src/pyload/plugins/extractors/UnTar.py uses os.path.commonprefix() for its path traversal check, which performs character-level string comparison rather than path-level comparison. This allows a specially crafted tar archive to write files outside the intended extraction directory. The correct function os.path.commonpath() was added to the codebase in the CVE-2026-32808 fix (commit 5f4f0fa) but was never applied to _safe_extractall(), making this an incomplete fix. This vulnerability is fixed in 0.5.0b3.dev97.
Frequently asked questions
- What is CVE-2026-35592?
- pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev97, the _safe_extractall() function in src/pyload/plugins/extractors/UnTar.py uses os.path.commonprefix() for its path traversal check, which performs character-level string comparison rather than path-level comparison. This allows a specially crafted tar archive to write files outside the intended extraction directory. The correct function os.path.commonpath() was added to the codebase in the CVE-2026-32808 fix (commit 5f4f0fa) but was never applied to _safe_extractall(), making this an incomplete fix. This vulnerability is fixed in 0.5.0b3.dev97.
- How severe is CVE-2026-35592?
- CVE-2026-35592 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2026-35592 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-35592?
- CVE-2026-35592 affects Pyload-ng Project Pyload-ng. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-35592?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-35592 have an EU (EUVD) identifier?
- Yes. CVE-2026-35592 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19738.
- When was CVE-2026-35592 published?
- CVE-2026-35592 was published on 2026-04-07 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:*
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