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Vulnerability record · CVE-2026-87816 · published 9 September 2026

CVE-2026-87816: Race condition vulnerability

PasswordPusher before 2.11.1 contains a time-of-check-to-time-of-use race condition in view limit enforcement that allows unauthenticated attackers to bypass expire_after_views limits. Attackers can send concurrent requests to the show endpoint to access one-time secrets multiple times before the view count is incremented and the push expires.

8.7 CVSS 4.0 High EPSS 0.37% · top 71.7% CWE-362 · Race condition Deferred
8.7CVSS 4.0 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
10 Sep 2026Last modified by NVD

Description

PasswordPusher before 2.11.1 contains a time-of-check-to-time-of-use race condition in view limit enforcement that allows unauthenticated attackers to bypass expire_after_views limits. Attackers can send concurrent requests to the show endpoint to access one-time secrets multiple times before the view count is incremented and the push expires.

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

References

LinkTags
https://github.com/pglombardo/PasswordPusher/security/advisories/GHSA-6q3c-57pp-wvpp
https://www.vulncheck.com/advisories/passwordpusher-before-2.11.1-race-condition-view-limit-bypass
https://github.com/pglombardo/PasswordPusher/security/advisories/GHSA-6q3c-57pp-wvpp

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Source: NIST National Vulnerability Database (record CVE-2026-87816), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.