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CVE-2026-0992

17
FAUCET Score

CVE-2026-0992 is an uncontrolled resource consumption vulnerability in the libxml2 library, affecting applications that process XML catalogs. A remote attacker can trigger a denial-of-service by supplying crafted catalogs with repeated <nextCatalog> elements, leading to excessive CPU usage. The vulnerability has a LOW severity CVSS score of 2.9, indicating a local attack vector with high attack complexity and low impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:jboss_core_services:-:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

2.9LOW

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
1.4
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 77th percentile among its peer group of 747 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (13)

microsoftpatch availablevia msrc
Product: 20825-17084Fixed in: 2.11.5-9
microsoftpatch availablevia msrc
Product: azl3 libxml2 2.11.5-8 on Azure Linux 3.0Fixed in: 2.11.5-9
microsoftpatch availablevia msrc
Product: azl3 libxml2 2.11.5-9 on Azure Linux 3.0Fixed in: 2.11.5-9
microsoftpatch availablevia msrc
Product: cbl2 libxml2 2.10.4-10 on CBL Mariner 2.0Fixed in: 2.10.4-10
microsoftpatch availablevia msrc
Product: 20960-17084Fixed in: 2.11.5-9
microsoftpatch availablevia msrc
Product: 20901-17086Fixed in: 2.10.4-10
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: libxml2
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: rhcos
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libxml2
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libxml2
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libxml2
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: libxml2
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Core ServicesFixed in: libxml2

Vendor Advisories (2)

redhatCVE-2026-0992Low

libxml2: libxml2: Denial of Service via crafted XML catalogs

Jan 15, 2026
microsoft2026-Jan/CVE-2026-0992Low

Libxml2: libxml2: denial of service via crafted xml catalogs

Jan 13, 2026

References

access.redhat.com / errata/RHSA-2026:7519
Third Party Advisory
access.redhat.com / security/cve/CVE-2026-0992
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Third Party AdvisoryIssue Tracking
gitlab.gnome.org / GNOME/libxml2/-/issues/1019
Third Party AdvisoryExploit