← Vulnerability feed

Vulnerability record · CVE-2026-0992 · published 15 January 2026

CVE-2026-0992: Redhat hardened images uncontrolled resource consumption vulnerability

Redhat · Hardened Images

A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> 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.

2.9 CVSS 3.1 Low EPSS 0.46% · top 62.2% CWE-400 · Uncontrolled resource consumption
2.9CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
4References, 1 tagged exploit
1 Sep 2026Last modified by NVD

Description

A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> 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.

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

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:7519 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-0992 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2429975 Issue TrackingThird Party Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019 ExploitThird Party Advisory

Track CVE-2026-0992 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-11043PHP-FPM buffer overflow enables remote code executionPHP-FPM in certain configurations writes past allocated buffers into FCGI protocol data space, an out-of-bounds write (CWE-787, CWE-120). It affects …KEVEPSS 100%analysed9.8CVE-2018-14667RichFaces Framework EL injection enables unauthenticated remote code executionRichFaces Framework 3.X through 3.3.4 is vulnerable to Expression Language injection through the UserResource resource. A remote, unauthenticated att…KEVEPSS 74%analysed9.8CVE-2014-7169GNU Bash environment variable function parsing command injection (Shellshock variant)GNU Bash through 4.3 bash43-025 processes trailing strings after malformed function definitions in environment variable values, allowing command inje…KEVEPSS 100%analysed9.8CVE-2014-6271GNU Bash environment variable command injection (ShellShock)GNU Bash through 4.3 processes trailing strings after function definitions in environment variable values, allowing injected commands to run when Bas…KEVEPSS 100%analysed9.0CVE-2021-40438Apache HTTP Server mod_proxy SSRF via crafted URI pathA crafted request URI path can make mod_proxy forward the request to an origin server chosen by the remote user, an SSRF flaw in Apache HTTP Server 2…KEVEPSS 100%analysed8.8CVE-2025-31277Apple WebKit memory corruption via malicious web contentApple WebKit fails to handle memory correctly when processing crafted web content, leading to memory corruption across Safari, iOS, iPadOS, macOS, tv…KEVEPSS 1.6%analysed8.8CVE-2023-5217libvpx VP8 encoding heap buffer overflow exploited via crafted HTMLA heap buffer overflow in the VP8 encoder in libvpx affects Google Chrome before 117.0.5938.132 and libvpx 1.13.1, and is reachable through a crafted…KEVEPSS 49%analysed8.8CVE-2023-32373Apple WebKit use-after-free enables code execution via web contentA use-after-free flaw in Apple's WebKit engine was fixed across watchOS, tvOS, macOS, iOS, iPadOS and Safari. Processing maliciously crafted web cont…KEVEPSS 12%analysed

Source: NIST National Vulnerability Database (record CVE-2026-0992), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.