CVE-2025-6278CRITICAL 9.8EPSS p46.2%

CVE-2025-6278CVE-2025-6278

Description

A vulnerability classified as critical was found in Upsonic up to 0.55.6. This vulnerability affects the function os.path.join of the file markdown/server.py. The manipulation of the argument file.filename leads to path traversal. The exploit has been disclosed to the public and may be used.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.65% probability of exploitation · percentile 46.2% · 2026-06-18T12:00:27Z
Published2025-06-19
Last modified2026-04-29

Underlying weaknesses· 1

CWE-22

References

  1. https://github.com/Upsonic/Upsonic/issues/356
  2. https://vuldb.com/?ctiid.313282
  3. https://vuldb.com/?id.313282
  4. https://vuldb.com/?submit.593096
  5. https://github.com/Upsonic/Upsonic/issues/356

1

TypeTargetConfidenceTier
WeaknessImproper Limitation of a Pathname to a Restricted Directory ('Path Traversal')cwe-220%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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CVE-2025-6279
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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.