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OpenAdvisories
High RHSA-2026:57638 1 CVE

Red Hat Security Advisory: python-urwid security update

Published Aug 21, 2026 · Updated Aug 27, 2026

Ecosystem: Red Hat

Fixed packages 8

ReleasePackageFixed in
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos python-urwid 0:1.3.1-4.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos python-urwid-debugsource 0:1.3.1-4.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos python3-urwid 0:1.3.1-4.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos python3-urwid-debuginfo 0:1.3.1-4.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos python-urwid 0:1.3.1-4.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos python-urwid-debugsource 0:1.3.1-4.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos python3-urwid 0:1.3.1-4.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos python3-urwid-debuginfo 0:1.3.1-4.el8_4.1

Vulnerabilities 1

  • High 8.1
    CVE-2026-9323

    Insecure PRNG and Information Exposure in urwid Web Display Backend

    The urwid web display backend (urwid/display/web.py) generates web session identifiers (urwid_id) in Screen.start() by concatenating two random.randrange(10**9) calls that use Python's Mersenne Twister PRNG, which is not cryptographically secure. Each call co…

    urwid urwid python-urwid urwid Debian Ubuntu Azure Linux

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2502072
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_57638.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-9323
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-9323
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-9323
  • article
    https://github.com/urwid/urwid
  • article
    https://github.com/urwid/urwid/commit/24acd12f0d0598036d0d577f2ee63e4a27b4a3d9
  • article
    https://github.com/urwid/urwid/issues/1127
  • article
    https://github.com/urwid/urwid/pull/1128
  • article
    https://github.com/urwid/urwid/security/advisories/GHSA-rjwp-g85x-gmjv
  • article
    https://www.vulncheck.com/advisories/insecure-prng-and-information-exposure-in-urwid-web-display-backend