CVE-2026-80189

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 45.6% of scored records. A rank, not a probability.

NVD base score

7.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-09-24.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-25 23:18Z2 MO AGO

Last updated

2026-08-29 11:48Z2 MO AGO

Reserved

2026-08-25

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-409Improper Handling of Highly Compressed Data (Data Amplification)Base

Data version

5.2

Document digest

9e34481c59ef711e5d521a621c52160a53be30d9e688da1acf55f2904e3a2a12

• github.comhttps://github.com/perber/leafwikiproduct
• github.comGitHub Security Advisory (GHSA-258m-crqp-25xc)https://github.com/perber/leafwiki/security/advisories/GHSA-258m-crqp-25xcvendor-advisory
• github.comhttps://github.com/perber/leafwiki/blob/v0.12.0/internal/importer/zip_extractor.gotechnical-description
• github.comLeafWiki v0.12.1 Release Noteshttps://github.com/perber/leafwiki/releases/tag/v0.12.1release-notes
• www.vulncheck.comVulnCheck Advisory: LeafWiki 0.10.0 through 0.12.0 Uncontrolled Resource Consumption via Unbounded ZIP Extractionhttps://www.vulncheck.com/advisories/leafwiki-0.10.0-through-0.12.0-uncontrolled-resource-consumption-via-unbounded-zip-extractionthird-party-advisory