Severity by source
Sources disagree (Medium–Critical)AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Use after free in Base in Google Chrome on Linux prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Information disclosure in Google Chrome on Linux prior to 149.0.7827.53 allows a remote attacker who has already compromised the renderer process to read sensitive data from process memory by serving a crafted HTML page that triggers a use-after-free in the Base component. The flaw is rated Medium by Chromium but scored CVSS 8.8 in NVD, and no public exploit identified at time of analysis with an EPSS of 0.03%.
Technical ContextAI
The defect lives in Chrome's Base component, a foundational library shared across the browser providing core primitives (containers, memory utilities, task scheduling) used by the renderer and other processes. CWE-416 (Use After Free) means an object is referenced after its memory has been freed, which on Linux can leak adjacent heap contents - pointers, tokens, or document data - to attacker-controlled code running inside an already-exploited renderer. This bug is therefore a sandbox-adjacent primitive that aids post-exploitation memory inspection rather than an initial code-execution vector, and it specifically affects the Linux build of Chrome (versions prior to 149.0.7827.53).
RemediationAI
Vendor-released patch: Google Chrome 149.0.7827.53 for Linux - upgrade immediately by triggering Chrome's built-in updater (chrome://settings/help) or by deploying the new stable package through your Linux distribution or enterprise management channel, then restarting the browser to load the fixed binary. Enterprises should validate the rollout via the Chrome Releases advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html and audit fleet versions to ensure no instance remains below 149.0.7827.53. No workaround is documented; as a temporary compensating control, restrict Linux users to browsing only trusted sites and enforce Chrome's site isolation (already on by default) to limit cross-origin renderer reuse, accepting the trade-off that this does not block the bug itself and only narrows the blast radius if a renderer is already compromised.
Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player
V8 in Google Chrome prior to 54.0.2840.90 for Linux, and 54.0.2840.85 for Android, and 54.0.2840.87 for Windows and Mac
Type confusion in V8 in Google Chrome prior to 59.0.3071.86 for Linux, Windows, and Mac, and 59.0.3071.92 for Android, a
The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google Chrome before 49.0.2623.108, do
Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderb
Incorrect handling of complex species in V8 in Google Chrome prior to 57.0.2987.98 for Linux, Windows, and Mac and 57.0.
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbi
An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Conta
The XrayWrapper implementation in Mozilla Firefox before 35.0 and SeaMonkey before 2.32 does not properly interact with
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbi
The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and Se
Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13
Same weakness CWE-416 – Use After Free
View allSame technique Denial Of Service
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-34519
GHSA-m4x7-9rr5-qr3w