CVE-2020-26965

critical
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
9.5

Description

Some websites have a feature "Show Password" where clicking a button will change a password field into a textbook field, revealing the typed password. If, when using a software keyboard that remembers user input, a user typed their password and used that feature, the type of the password field was changed, resulting in a keyboard layout change and the possibility for the software keyboard to remember the typed password. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-26965

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-26965.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202011-12

OS impact

OSVersionStatusFixed in
arch archfixed83.0-1
suse slesaffected
debian debiansidfixed83.0-1
debian debianbookwormfixed78.5.0esr-1
debian debianbullseyefixed78.5.0esr-1
debian debianforkyfixed78.5.0esr-1
debian debiantrixiefixed78.5.0esr-1

References

Verify integrity in audit chain (admin only). AS-IS.