CVE-2026-90505

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 16.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 2026-09-14.

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

2026-09-13 09:00Z1 MO AGO

Last updated

2026-09-14 18:04Z1 MO AGO

Reserved

2026-09-12

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Low (CVSS 2.3)

CNA CVSS vector

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

Weaknesses

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.2

Document digest

4c4c024d15f1e59270418ab681f5d8fbe26254cfc28a7d6049c4b8e2d8952164

• vuldb.comVDB-403093 | vvbbnn00 WARP-Clash-API doUpdateLicenseKey race conditionhttps://vuldb.com/vuln/403093vdb-entrytechnical-description
• vuldb.comVDB-403093 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/403093/ctisignaturepermissions-required
• vuldb.comCVE-2026-90505 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-90505third-party-advisory
• vuldb.comSubmit #895264 | vvbbnn00 (https://github.com/vvbbnn00) WARP-Clash-API latest (main/master branch) CWE-362 (Race Condition / TOCTOU - non-atomic check-then-act withttps://vuldb.com/submit/895264third-party-advisory
• gist.github.comhttps://gist.github.com/Galaxync/62748fe998dd8518691e11d765224093exploit