Libmodulemd: libmodulemd: missing decompressed-size limit when parsing compressed yaml
Historical advisory recorded 6 Nov 2026 02:36:20 UTC. Read the latest advisory.
cve-program · CVE-2026-92823
PublishedA 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.
Read the publisher's advisoryAffected versions, risk and source history
cve-program · CVE-2026-92823
PublishedLibmodulemd: libmodulemd: missing decompressed-size limit when parsing compressed yaml
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.
- Source published
- 21 Oct 2026 03:18:37 UTC
- Source modified
- 6 Nov 2026 01:50:20 UTC
- Saved here
- 6 Nov 2026 02:36:20 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H