CVE-2026-25057

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 62% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 0

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

MarkUs is a web application for the submission and grading of student assignments. Prior to 2.9.1, instructors are able to upload a zip file to create an assignment from an exported configuration (courses/<:course_id>/assignments/upload_config_files). The uploaded zip file entry names are used to create paths to write files to disk without checking these paths. This vulnerability is fixed in 2.9.1.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
37.9%
KEV
Not listed

Published

February 9, 2026

Last Modified

February 19, 2026

Advisory Details (3)

Auto-updated Jun 7, 2026
Patch available. Sources: github_commit, github_release, github.
github Patch Available

Zip slip in assignment configuration upload allows RCE · Advisory · MarkUsProject/Markus · GitHub

https://github.com/MarkUsProject/Markus/security/advisories/GHSA-mccg-p332-252h
github_release Patch Available

v2.9.1

Patch available: MarkUsProject/Markus v2.9.1

https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1
github_commit Patch Available

commit 0ca002a1f007 (MarkUsProject/Markus)

Patch available: MarkUsProject/Markus v2.9.1 (contains commit 0ca002a1f007)

https://github.com/MarkUsProject/Markus/commit/0ca002a1f0071c7a00dbb2ed34fede57323c5dc7

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 52× 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. 2026-07-23 03:07 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
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  5. 2026-07-20 17:08 UTCEPSS rescore
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  12. 2026-07-17 17:29 UTCOSV refresh
  13. 2026-07-16 17:03 UTCEPSS rescore
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  15. 2026-07-15 16:57 UTCEPSS rescore
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  1. 2026-07-08 15:15 UTCEPSS rescore
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  3. 2026-07-07 13:46 UTCEPSS rescore
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  15. 2026-06-29 15:32 UTCOSV refresh
  16. 2026-06-29 14:06 UTCEPSS rescore
  17. 2026-06-28 14:07 UTCEPSS rescore
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  19. 2026-06-28 04:56 UTCEPSS rescore
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  21. 2026-06-27 03:08 UTCEPSS rescore
  22. 2026-06-25 13:49 UTCEPSS rescore
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  24. 2026-06-24 14:05 UTCEPSS rescore
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  26. 2026-06-23 21:33 UTCEPSS rescore
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  28. 2026-06-22 14:25 UTCEPSS rescore
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  30. 2026-06-21 14:56 UTCEPSS rescore
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  36. 2026-06-18 17:52 UTCEPSS rescore
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  48. 2026-06-10 13:22 UTCEPSS rescore
  49. 2026-06-08 14:17 UTCEPSS rescore
  50. 2026-06-08 14:17 UTCEPSS rescore
  51. 2026-06-07 15:25 UTCEPSS rescore
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  54. 2026-06-06 13:47 UTCEPSS rescore
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  58. 2026-06-05 06:10 UTCEPSS rescore
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  60. 2026-06-04 13:12 UTCEPSS rescore
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  70. 2026-05-31 00:16 UTCEPSS rescore
  71. 2026-05-29 14:20 UTCEG score recompute
  72. 2026-05-29 13:44 UTCEPSS rescore
  73. 2026-05-29 13:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-25057?
CVE-2026-25057 is a critical vulnerability published on February 9, 2026. MarkUs is a web application for the submission and grading of student assignments. Prior to 2.9.1, instructors are able to upload a zip file to create an assignment from an exported configuration (courses/<:courseid>/assignments/uploadconfig_files). The uploaded zip file entry names are used to…
When was CVE-2026-25057 disclosed?
CVE-2026-25057 was first published in the National Vulnerability Database on February 9, 2026, with the most recent update on February 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-25057 actively exploited?
CVE-2026-25057 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-25057?
CVE-2026-25057 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-25057?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25057, 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.

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