Home / mailings [SECURITY] [DSA 6521-1] ruby-oj security update
Posted on 27 September 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6521-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
September 27, 2026 https://www.debian.org/security/faq
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Package : ruby-oj
CVE ID : CVE-2026-54500 CVE-2026-54502 CVE-2026-54592 CVE-2026-54896
CVE-2026-54897 CVE-2026-54898 CVE-2026-54899 CVE-2026-54900
CVE-2026-54901 CVE-2026-54902 CVE-2026-54903
Multiple security vulnerabilities were discovered in Oj, a fast JSON
parser and serializer for Ruby, which could result in denial of service
or memory disclosure.
For the stable distribution (trixie), these problems have been fixed in
version 3.16.3-1+deb13u1.
We recommend that you upgrade your ruby-oj packages.
For the detailed security status of ruby-oj please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/ruby-oj
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
