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OpenAdvisories
Medium RHSA-2026:93593 2 CVEs

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Published Nov 13, 2026 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 3

ReleasePackageFixed in
Red Hat · Hardened Images 1 hummingbird:1 expat 0:2.9.0-1.2.hum1
Red Hat · Hardened Images 1 hummingbird:1 expat-devel 0:2.9.0-1.2.hum1
Red Hat · Hardened Images 1 hummingbird:1 expat-static 0:2.9.0-1.2.hum1

Vulnerabilities 2

  • Medium 5.9
    CVE-2026-117610

    libexpat through 2.9.0 NULL Pointer Dereference via External Entity Subparser

    libexpat through 2.9.0 contains a NULL pointer dereference vulnerability in externalEntityInitProcessor2() in lib/xmlparse.c that mishandles the XML_TOK_NONE token from empty input. Attackers who control stream chunking can force an empty non-final first pars…

    libexpat project libexpat insighttoolkit4 cmake Debian Ubuntu Azure Linux Alpine
  • Medium 5.9
    CVE-2026-118370

    libexpat through 2.9.0 Integer Overflow in storeAtts via attIndex and nPrefixes

    libexpat through 2.9.0 contains a signed integer overflow vulnerability in storeAtts() in lib/xmlparse.c that allows attackers to trigger out-of-bounds writes via oversized attribute counts. Attackers can supply a multi-gigabyte document with a start tag carr…

    libexpat project libexpat insighttoolkit4 cmake Debian Ubuntu Azure Linux Alpine

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-117610
  • report
    https://access.redhat.com/security/cve/CVE-2026-118370
  • article
    https://access.redhat.com/security/updates/classification/
  • article
    https://images.redhat.com/
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_93593.json
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2562538
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-117610
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-117610
  • article
    https://github.com/libexpat/libexpat
  • article
    https://github.com/libexpat/libexpat/blob/a76b1174c1ea52abb639a4c69d52b630a8a106a2/expat/lib/xmlparse.c#L3468-L3510
  • article
    https://github.com/libexpat/libexpat/commit/7b0d50e4b1d16fafd55876260701e04279a7489d
  • article
    https://github.com/libexpat/libexpat/pull/1444
  • article
    https://www.vulncheck.com/advisories/libexpat-through-2.9.0-null-pointer-dereference-via-external-entity-subparser
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2562544
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-118370
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-118370
  • article
    https://github.com/libexpat/libexpat/blob/a76b1174c1ea52abb639a4c69d52b630a8a106a2/expat/lib/xmlparse.c#L4138-L4140
  • article
    https://github.com/libexpat/libexpat/commit/1bac53c4fc460a03cd9860f39501c7979f6750ae
  • article
    https://github.com/libexpat/libexpat/commit/621cb2c78b253ee023a86bc91d6ddb048481c04c
  • article
    https://github.com/libexpat/libexpat/pull/1450
  • article
    https://www.vulncheck.com/advisories/libexpat-through-2.9.0-integer-overflow-in-storeatts-via-attindex-and-nprefixes