CVE-2026-120627
CVE-2026-120627
The Private Internet Access Extension for Firefox contains an unguarded onAuthRequired authentication handler, leading to leakage of PIA proxy credentials when a user visits any malicious website that issues a Basic auth challenge. This issue was fixed in version 3.2.5, but reintroduced in later versions.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Firefox extension Private Internet Access |
≥ 3.2.5; ≤ 4.0.5 (affected, custom) | CNA: certcc |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.5 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | ADP: CISA-ADP |
| 3.1 / 7.5 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://addons.mozilla.org/en-US/firefox/addon/private-internet-access-ext/CNA: certcc
- https://github.com/Rexyysilent/PI-ay-ay-disclosureCNA: certcc
- https://addons.mozilla.org/en-US/firefox/addon/private-internet-access-ext/[email protected]
- https://github.com/Rexyysilent/PI-ay-ay-disclosure[email protected]
For agents and automation
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