CVE-2020-26979

high
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
8.0

Description

When a user typed a URL in the address bar or the search bar and quickly hit the enter key, a website could sometimes capture that event and then redirect the user before navigation occurred to the desired, entered address. To construct a convincing spoof the attacker would have had to guess what the user was typing, perhaps by suggesting it. This vulnerability affects Firefox < 84.

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-2020-26979

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-26979.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202012-25

OS impact

OSVersionStatusFixed in
arch archfixed84.0-1
suse slesaffected
debian debiansidfixed84.0-1

References

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