A flaw was found in libmodulemd. In builds with rpmio support enabled, compressed modulemd YAML is decompressed through a custom read handler that does not enforce a cumulative decompressed-size limit before parsing. An attacker who can supply a highly compressible compressed YAML file can cause excessive CPU and memory consumption, resulting in a denial of service.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-d657495ea3 advisory.

    This release rejects YAML files which decompress to much (CVE-2026-92823), rejects YAML documents with     YAML tree deeper than 64 (CVE-2026-92822), fixes iterating over checksums in     modulemd_module_stream_v2_emit_rpm_map() function (CVE-2026-92824).

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-946f33e2c8 advisory.

    This release rejects YAML files which decompress to much (CVE-2026-92823), rejects YAML documents with     YAML tree deeper than 64 (CVE-2026-92822), fixes iterating over checksums in     modulemd_module_stream_v2_emit_rpm_map() function (CVE-2026-92824).

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A flaw was found in libmodulemd. In builds with rpmio support enabled, compressed modulemd YAML is     decompressed through a custom read handler that does not enforce a cumulative decompressed-size limit     before parsing. An attacker who can supply a highly compressible compressed YAML file can cause excessive     CPU and memory consumption, resulting in a denial of service. (CVE-2026-92823)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
378036	Fedora 44 : libmodulemd (2026-d657495ea3)	Nessus	Fedora Local Security Checks	Local	medium
378033	Fedora 45 : libmodulemd (2026-946f33e2c8)	Nessus	Fedora Local Security Checks	Local	medium
369503	Linux Distros Unpatched Vulnerability : CVE-2026-92823	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-92823

medium

Tenable Plugins

medium

medium

medium