------------------------------------------------------------------------- Debian LTS Advisory DLA-4557-1 [email protected] https://www.debian.org/lts/security/ Emmanuel Arias May 01, 2026 https://wiki.debian.org/LTS -------------------------------------------------------------------------
Package : pyasn1 Version : 0.4.8-1+deb11u2 CVE ID : CVE-2026-30922 Debian Bug : 1131371 It was discovered that pyasn1, a generic ASN.1 library for Python, is vulnerable to a Denial of Service (DoS) attack caused by uncontrolled recursion when decoding ASN.1 data with deeply nested structures. This vulnerability can force the decoder to recursively call itself until the Python interpreter crashes with a `RecursionError` or consumes all available memory, crashing the host application. For Debian 11 bullseye, this problem has been fixed in version 0.4.8-1+deb11u2. We recommend that you upgrade your pyasn1 packages. For the detailed security status of pyasn1 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/pyasn1 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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