CVE-2026-82035

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-14. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 24, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

PyMuPDF 1.28.2 Path Traversal via extract_objects() Font Branch | Advisories | VulnCheck

https://www.vulncheck.com/advisories/pymupdf-path-traversal-via-extract-objects-font-branch
github_commit

commit b2c8f3a859fe (pymupdf/PyMuPDF)

Fix landed in pymupdf/PyMuPDF commit b2c8f3a859fe — awaiting tagged release

https://github.com/pymupdf/PyMuPDF/commit/b2c8f3a859fed35c379a44df566f770dc3e18605

Vendor Advisories for CVE-2026-82035(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-25 09:01 UTCGHSA enrichment
  2. 2026-09-24 20:56 UTCEG score recompute
  3. 2026-09-24 20:56 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 09:13 UTCGHSA enrichment
  6. 2026-09-23 21:08 UTCGHSA enrichment
  7. 2026-09-23 09:03 UTCGHSA enrichment
  8. 2026-09-22 20:58 UTCEG score recompute
  9. 2026-09-22 20:58 UTCGHSA enrichment
  10. 2026-09-22 16:01 UTCEPSS rescore
  11. 2026-09-22 08:52 UTCEG score recompute
  12. 2026-09-22 08:51 UTCGHSA enrichment
  13. 2026-09-21 21:09 UTCEPSS rescore
  14. 2026-09-21 20:43 UTCGHSA enrichment
  15. 2026-09-21 08:38 UTCGHSA enrichment
  16. 2026-09-20 20:26 UTCEG score recompute
  17. 2026-09-20 20:26 UTCGHSA enrichment
  18. 2026-09-20 20:16 UTCEPSS rescore
  19. 2026-09-20 08:20 UTCGHSA enrichment
  20. 2026-09-19 20:15 UTCEG score recompute
  21. 2026-09-19 20:15 UTCGHSA enrichment
  22. 2026-09-19 08:10 UTCGHSA enrichment
  23. 2026-09-18 20:04 UTCEG score recompute
  24. 2026-09-18 20:04 UTCGHSA enrichment
  25. 2026-09-18 19:28 UTCEPSS rescore
Show 16 more
  1. 2026-09-18 07:59 UTCGHSA enrichment
  2. 2026-09-17 19:54 UTCEG score recompute
  3. 2026-09-17 19:54 UTCGHSA enrichment
  4. 2026-09-17 07:48 UTCGHSA enrichment
  5. 2026-09-16 19:42 UTCEG score recompute
  6. 2026-09-16 19:42 UTCGHSA enrichment
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-16 07:37 UTCEG score recompute
  9. 2026-09-16 07:37 UTCGHSA enrichment
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 19:31 UTCGHSA enrichment
  12. 2026-09-15 07:25 UTCEG score recompute
  13. 2026-09-15 07:25 UTCGHSA enrichment
  14. 2026-09-14 19:19 UTCEG score recompute
  15. 2026-09-14 18:52 UTCEG score recompute
  16. 2026-09-14 18:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82035?
CVE-2026-82035 is a high vulnerability published on September 14, 2026. PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/main.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping…
When was CVE-2026-82035 disclosed?
CVE-2026-82035 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82035 actively exploited?
CVE-2026-82035 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 59.1% of all scored CVEs.
What is the CVSS score of CVE-2026-82035?
CVE-2026-82035 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-82035?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82035, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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