CVE-2026-0992

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Source
https://cve.org/CVERecord?id=CVE-2026-0992
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-0992.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-0992
Downstream
AZL (2)
BELL (1)
CLSA (2)
DEBIAN (1)
ECHO (1)
JLSEC (1)
MGASA (1)
OESA (1)
openSUSE (2)
RHSA (1)
ROOT (2)
SUSE (9)
UBUNTU (1)
Related
openSUSE (2)
SUSE (9)
Published
2026-01-15T14:20:24Z
Modified
2026-10-22T02:48:46Z
Severity
  • 2.9 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Libxml2: libxml2: denial of service via crafted xml catalogs
Details

A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.

Database specific 
{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-400"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0992.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "2.15.2-0.3.hum1"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "InverseAffectedRanges"
                }
            ]
        }
    ]
}
References

Affected packages

Git / gitlab.gnome.org/gnome/libxml2

Affected ranges

Type
GIT
Repo
https://gitlab.gnome.org/gnome/libxml2
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3d840e17858de03a09fba8b202e3a89267d5795a
Introduced
2189b59b1005976970ebadb65edbb289f9e091ff
Last Affected
2189b59b1005976970ebadb65edbb289f9e091ff
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.15.2"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "6.0"
                },
                {
                    "last_affected":  "6.0"
                }
            ],
            "source":  "CPE_STRING"
        }
    ]
}

Affected versions

6.*
6.0
Other
LIBXML2_6_0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-0992.json"