CVE-2026-40258

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 77% 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
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.

The Gramps Web API is a Python REST API for the genealogical research software Gramps. Versions 1.6.0 through 3.11.0 have a path traversal vulnerability (Zip Slip) in the media archive import feature. An authenticated user with owner-level privileges can craft a malicious ZIP file with directory-traversal filenames to write arbitrary files outside the intended temporary extraction directory on the server's local filesystem. Startig in version 3.11.1, ZIP entry names are now validated against the resolved real path of the temporary directory before extraction. Any entry whose resolved path falls outside the temporary directory raises an error and aborts the import.

CVSS v3
9.1
EG Score
9.1(medium)
EPSS
32.3%
KEV
Not listed

Published

April 17, 2026

Last Modified

April 29, 2026

Advisory Details (3)

Auto-updated Apr 29, 2026
Patch available. Sources: github.
github Patch Available

Zip Slip Path Traversal in Media Archive Import (CWE-22) · Advisory · gramps-project/gramps-web-api · GitHub

https://github.com/gramps-project/gramps-web-api/security/advisories/GHSA-m5gr-86j6-99jp
generic

Release v3.11.1 · gramps-project/gramps-web-api · GitHub

https://github.com/gramps-project/gramps-web-api/releases/tag/v3.11.1
generic

Media importer: prevent writes outside tmp · gramps-project/gramps-web-api@3ed4342 · GitHub

https://github.com/gramps-project/gramps-web-api/commit/3ed4342711e3ec849552df09b1fe2fbf2ca5c29a

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
gramps-webapi1.6.0 ... 3.9.1 (40 versions)3.11.1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 37× 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. 2026-07-16 17:03 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
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  1. 2026-06-25 13:49 UTCEPSS rescore
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  6. 2026-06-21 14:56 UTCEPSS rescore
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  8. 2026-06-21 01:59 UTCEPSS rescore
  9. 2026-06-19 19:25 UTCEPSS rescore
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  22. 2026-06-08 14:17 UTCEPSS rescore
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  26. 2026-06-06 13:47 UTCEPSS rescore
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  47. 2026-05-27 13:40 UTCEPSS rescore
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  50. 2026-05-26 13:44 UTCEPSS rescore
  51. 2026-05-26 07:18 UTCEPSS rescore
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  53. 2026-05-20 22:38 UTCEPSS rescore
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  55. 2026-05-20 16:50 UTCEG score recompute
  56. 2026-05-20 11:22 UTCEPSS rescore
  57. 2026-05-20 11:22 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-40258?
CVE-2026-40258 is a critical vulnerability published on April 17, 2026. The Gramps Web API is a Python REST API for the genealogical research software Gramps. Versions 1.6.0 through 3.11.0 have a path traversal vulnerability (Zip Slip) in the media archive import feature. An authenticated user with owner-level privileges can craft a malicious ZIP file with…
When was CVE-2026-40258 disclosed?
CVE-2026-40258 was first published in the National Vulnerability Database on April 17, 2026, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40258 actively exploited?
CVE-2026-40258 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-40258?
CVE-2026-40258 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-40258?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40258, 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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