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CVE-2026-92824

Libmodulemd: libmodulemd: out-of-bounds read when emitting rpm-map artifacts

6.2 Medium

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop incorrectly uses the count of digest algorithms as its bound instead of the number of checksums in the current digest table. Crafted modulemd v2 metadata with multiple digest types can trigger an out-of-bounds read during YAML serialization, typically causing a crash and resulting in a denial of service.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.14%Unchanged since Oct 21, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.2

Libmodulemd: libmodulemd: out-of-bounds read when emitting rpm-map artifacts

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop incorrectly uses the count of digest algorithms as its bound instead of the number of checksums in the current digest table. Crafted modulemd v2 metadata with multiple digest types can trigger an out-of-bounds read during YAML serialization, typically causing a crash and resulting in a denial of service.

Record
CVE-2026-92824
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-06
EUVDEUVD-2026-107038 6.2

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop incorrectly uses the count of digest algorithms as its bound instead of the number of checksums in the current digest table. Crafted modulemd v2 metadata with multiple digest types can trigger an out-of-bounds read during YAML serialization, typically causing a crash and resulting in a denial of service.

Record
EUVD-2026-107038
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-06
GitHub AdvisoriesGHSA-j65x-29mg-x4cj 6.2

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop...

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop incorrectly uses the count of digest algorithms as its bound instead of the number of checksums in the current digest table. Crafted modulemd v2 metadata with multiple digest types can trigger an out-of-bounds read during YAML serialization, typically causing a crash and resulting in a denial of service.

Record
GHSA-j65x-29mg-x4cj
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-06
NVD 6.2

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop incorrectly uses the count of digest algorithms as its bound instead of the number of checksums in the current digest table. Crafted modulemd v2 metadata with multiple digest types can trigger an out-of-bounds read during YAML serialization, typically causing a crash and resulting in a denial of service.

Record
CVE-2026-92824
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-06
OSVDEBIAN-CVE-2026-92824 6.2

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop incorrectly uses the count of digest algorithms as its bound instead of the number of checksums in the current digest table. Crafted modulemd v2 metadata with multiple digest types can trigger an out-of-bounds read during YAML serialization, typically causing a crash and resulting in a denial of service.

Record
DEBIAN-CVE-2026-92824
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-07
OSVUBUNTU-CVE-2026-92824 6.2

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop incorrectly uses the count of digest algorithms as its bound instead of the number of checksums in the current digest table. Crafted modulemd v2 metadata with multiple digest types can trigger an out-of-bounds read during YAML serialization, typically causing a crash and resulting in a denial of service.

Record
UBUNTU-CVE-2026-92824
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVAZL-112753 No score

CVE-2026-92824 affecting package libmodulemd 2.15.0-1

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop incorrectly uses the count of digest algorithms as its bound instead of the number of checksums in the current digest table. Crafted modulemd v2 metadata with multiple digest types can trigger an out-of-bounds read during YAML serialization, typically causing a crash and resulting in a denial of service.

Record
AZL-112753
Updated
2026-11-07

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libmodulemd
Azure Linux:3
through 2.15.0-1 None known
libmodulemd
Debian:12
All versions, plus listed versions
2.14.0-32.15.0-12.15.2-12.15.2-22.15.2-32.15.2-42.15.3-1
None known
libmodulemd
Debian:13
All versions, plus listed versions
2.15.0-12.15.2-12.15.2-22.15.2-32.15.2-42.15.3-1
None known
libmodulemd
Debian:14
All versions, plus listed versions
2.15.0-12.15.2-12.15.2-22.15.2-32.15.2-42.15.3-1
None known
libmodulemd
Ubuntu:22.04:LTS
All versions, plus listed versions
2.12.0-12.13.0-1
None known
libmodulemd
Ubuntu:24.04:LTS
All versions, plus listed versions
2.14.0-32.14.0-3build12.14.0-3build2
None known
libmodulemd
Ubuntu:26.10
All versions, plus listed versions
2.15.2-32.15.2-42.15.3-1
None known
libmodulemd
Ubuntu:26.04:LTS
All versions, plus listed versions
2.15.0-12.15.2-12.15.2-3
None known

History

History
RecordedChangedSources
affected, aliases, referencesNVD, OSV
productsCVE List, EUVD, GitHub Advisories, NVD
referencesCVE List, GitHub Advisories, NVD, OSV
facts, referencesEUVD
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-92824 is a medium vulnerability (CVSS 6.2) in Red Hat Enterprise Linux 10, published October 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.

References

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