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Fencer Vulns
medium 6.5

CVE-2026-5888 json

Uninitialized Use in WebCodecs in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive informatio…

published 2026-04-08 7 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-20703

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

Uninitialized Use in WebCodecs in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)

Patch / fix

  • google chrome 147.0.7727.55
  • chromium Debian 12 147.0.7727.55-1~deb12u1
  • chromium Debian 13 147.0.7727.55-1~deb13u1
  • chromium Debian 14 147.0.7727.55-1

debian advisories DEBIAN-CVE-2026-5888

  • chromium openSUSE Leap 16.0 147.0.7727.137-bp160.1.1
  • chromium openSUSE Tumbleweed 147.0.7727.55-1.1

opensuse advisories openSUSE-SU-2026:20660-1openSUSE-SU-2026:10530-1

  • qt6-qtwebengine Alpine 3.23 6.10.3-r1
  • qt6-qtwebengine Alpine 3.24 6.11.0-r3

alpine advisories ALPINE-CVE-2026-5888

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-5888 updated cvss 4.3

chromium-browser: Uninitialized Use in WebCodecs

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
6 mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-457 Use of Uninitialized Variable
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.