🛡️ CVE-2021-30823 on Debian — webkit2gtk

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Monterey 12.0.1, iOS 14.8 and iPadOS 14.8, tvOS 15, Safari 15, watchOS 8. An attacker in a privileged network position may be able to bypass HSTS.

Distribution advisory

This page covers CVE-2021-30823 as tracked by Debian, for the package webkit2gtk. The fix is available in version 2.34.1-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.

Affected software

DEBIAN-CVE-2021-30823 is recorded against 2 packages.

webkit2gtk (fixed in 2.34.1-1)
wpewebkit (fixed in 2.34.1-1)

Timeline and source

Published on 28 October 2021 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2021-30823 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Ubuntu

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2021-10-28

Updated 2026-08-12

Modified 2026-08-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
webkit2gtk	—	2.34.1-1
wpewebkit	—	2.34.1-1

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2021-30823

🔗 NVD 🔗 Mitre

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