DaystoPatch

OracleExploited incident

Oracle HTTP Server / WebLogic Server Proxy Plug-in access-control flaw (CVSS 10.0)

CVE-2026-21962Critical, CVSS 10.0In CISA's Known Exploited Vulnerabilities catalog since 24 Aug 2026

  • Exploited after a fix existed
FixedFixed for every supported version on the day it became public.

Response

Silence
same day
First public report to first vendor statement
Exposure
same day
First public report to first fix
Follow-through
same day
First public report to a fix for every supported version
  • 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

    date only

    Oracle Critical Patch Update Advisory - January 2026 (Wayback snapshot)CuratedQuote verified

    2026-January-20 Rev 1. Initial Release.

    Coordinated disclosure: first public information was the CPU itself.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:a744dc89af87fc2a…
    Used in metrics
    Yes
    Dispute this timestamp
    4 more sources for this moment
    CVE.org record CVE-2026-21962ClaimedQuote verified20 Jan 2026, 21:56 UTC

    Vulnerability in the Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: Weblogic Server Proxy Plug-in for Apache HTTP Server, Weblogic Server

    CVE record published.

    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:1524ca621382d89e…
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    Bluesky postClaimedQuote not checked yet20 Jan 2026, 22:38 UTC

    🔴 CVE-2026-21962 - Critical (10)

    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
    CISA KEV (CVE-2026-21962)ClaimedQuote verified24 Aug 2026

    Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in Improper Access Control Vulnerability

    Added to CISA's KEV catalog on 2026-08-24.

    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
    Mastodon postClaimedQuote not checked yet24 Aug 2026, 21:00 UTC

    🚨 [CISA-2026:0824] CISA Adds One Known Exploited Vulnerability to Catalog ( https:// secdb.nttzen.cloud/security-ad visory/detail/CISA-2026:0824 ) CISA has added one new vulnerability to its Known

    Earliest third-party post we hold.

    Source
    Mastodon 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

    date onlysame day

    Oracle Critical Patch Update Advisory - January 2026 (Wayback snapshot)CuratedQuote verified

    2026-January-20 Rev 1. Initial Release.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:a744dc89af87fc2a…
    Used in metrics
    Yes
    Dispute this timestamp

  3. First workaround

    No official mitigation found yet.

  4. First fix

    date onlysame day

    Oracle Critical Patch Update Advisory - January 2026 (Wayback snapshot)CuratedQuote verified

    Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in, versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0

    The CPU's affected-products table lists these versions with patches in the CPU released 2026-01-20 (Rev 1).

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:a744dc89af87fc2a…
    Used in metrics
    Yes
    Dispute this timestamp

  5. Fixed for all versions

    date onlysame day

    Oracle Critical Patch Update Advisory - January 2026 (Wayback snapshot)CuratedQuote verified

    2026-January-20 Rev 1. Initial Release.

    Oracle CPUs ship patches for all supported affected versions on release day; per-platform patch availability documents are behind My Oracle Support login and were not checked.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:a744dc89af87fc2a…
    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

  • Oracle HTTP Server
  • Oracle WebLogic Server Proxy Plug-in for Apache HTTP Server
  • Oracle WebLogic Server Proxy Plug-in for IIS
How we built this timeline

Fixed in the January 2026 Critical Patch Update (released 20 Jan 2026; CVSS 3.1 base 10.0 per Oracle's risk matrix).

Exploitation came later: The Hacker News (25 Aug 2026) cites GreyNoise, CloudSEK and SOCRadar reports of exploitation attempts from February-March 2026 onward. oracle.com returns HTTP 403 to non-browser user agents, so Wayback snapshots are cited. The quote for world/vendor/Fixed for all versions spans two table cells of the Modification History table (date cell and note cell).

Related

No related incidents.

Oracle report card