DaystoPatch

GoogleExploited incident

Google Dawn Use-After-Free Vulnerability

CVE-2026-5281High, CVSS 8.8In CISA's Known Exploited Vulnerabilities catalog since 1 Apr 2026

Automated timeline. Not yet checked by a researcher, so it doesn't count toward any grade.

FixedFixed for every supported version on the day it became public.

Response

Silence
0h
First public report to first vendor statement
Exposure
0h
First public report to first fixUnverified source
Follow-through
0h
First public report to a fix for every supported versionUnverified source
  • Vendor silent
  • Vendor statement, no fix
  • Fixed for some versions
  • Fixed when disclosed
  • Date only, no time of day

Timeline and evidence

Open a moment to see its source and archived quote.

  1. First public report

    Google advisory chrome-8479459400399141073/CVE-2026-5281ClaimedQuote verified

    The Stable channel has been updated to 146.0.7680.177/178 for Windows/Mac and 146.0.7680.177 for Linux, which will roll out over the coming days/weeks. A full list of changes in this build is

    The vendor's own disclosure.

    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:e04c05da98fa16f9…
    Used in metrics
    Yes
    Dispute this timestamp
    3 more sources for this moment
    CISA KEV (CVE-2026-5281)ClaimedQuote verified1 Apr 2026

    Google Dawn Use-After-Free Vulnerability

    Added to CISA's KEV catalog on 2026-04-01.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:ef8fffede5c47200…
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    CVE.org record CVE-2026-5281ClaimedQuote verified1 Apr 2026, 04:41 UTC

    Use after free in Dawn in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page. (Chromium

    CVE record published.

    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:7a20287880adc8aa…
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    Bluesky postClaimedQuote not checked yet1 Apr 2026, 05:32 UTC

    Upstream release notes have been published. This release includes fixes for 21 CVES. Google is aware that an exploit for CVE-2026-5281 exists in the wild.

    Earliest third-party post we hold.

    Source
    Bluesky post social
    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Not checked yet
    Snapshot
    No archived snapshot
    Used in metrics
    No, kept for the record
    Dispute this timestamp

  2. Vendor statement

    at disclosure

    Google advisory chrome-8479459400399141073/CVE-2026-5281ClaimedQuote verified

    The Stable channel has been updated to 146.0.7680.177/178 for Windows/Mac and 146.0.7680.177 for Linux, which will roll out over the coming days/weeks. A full list of changes in this build is

    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:e04c05da98fa16f9…
    Used in metrics
    Yes
    Dispute this timestamp

  3. First workaround

    No official mitigation found yet.

  4. First fix

    at disclosureUnverified: quote not found in the archived copy

    Google advisory chrome-8479459400399141073/CVE-2026-5281ClaimedQuote not found in archive

    The Stable channel has been updated to 146.0.7680.177/178 for Windows/Mac and 146.0.7680.177 for Linux, which will roll out over the coming days/weeks.

    Stable Channel Update for Desktop: build fixing the listed CVEs (one candidate per channel/platform)

    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Not found in the archived copy. Treat with caution.
    Snapshot
    sha256:d5d0e3204ac44a60…
    Used in metrics
    Yes
    Dispute this timestamp

  5. Fixed for all versions

    at disclosureUnverified: derived by rule, not read from a source

    Google advisory chrome-8479459400399141073/CVE-2026-5281Inferred

    The Stable channel has been updated to 146.0.7680.177/178 for Windows/Mac and 146.0.7680.177 for Linux, which will roll out over the coming days/weeks. A full list of changes in this build is

    Patch-day rule: Google ships fixes in the advisory that discloses a bug, and this advisory states that fixed versions exist. So the vendor statement, first fix and fix for all versions all take the advisory's publication time.

    Recorded time
    Precision
    To the minute
    Origin
    Inferred. Derived by a documented rule.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:e04c05da98fa16f9…
    Used in metrics
    Yes
    Dispute this timestamp

Send this to your boss

No brief for this incident yet. We write one for every open incident and every critical bug exploited before a fix.

Affected products

  • Dawn
  • Chrome

Related

Google report card