# Red Hat Enterprise Linux vulnerabilities Source: https://junglewise.ai/threats/technologies/red-hat-enterprise-linux Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/red-hat-enterprise-linux.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 15 vulnerabilities in Red Hat Enterprise Linux: 0 in the last 7 days and 5 in the last 90 days, 2 of them critical and 1 exploited in the wild. The most recent, CVE-2026-118593, was published on 30 October 2026. 1 vulnerability in the last four weeks, down 50% on the four before (2). ## Counts - Last 7 days: 0 - Last 30 days: 1 - Last 90 days: 5 - All time: 15 (2 critical, 1 exploited in the wild) ## About Red Hat Enterprise Linux Enterprise Linux operating system by Red Hat for servers and cloud environments. ## Latest Red Hat Enterprise Linux vulnerabilities - [CVE-2026-118593: Red Hat Enterprise Linux kernel local_bh imbalance in seg6_input_core](https://junglewise.ai/threats/cve-2026-118593-a-flaw-was-found-in-red-hat-enterprise-linux-9-kernel-builds-an) (medium, CVSS 5.9, published 30 Oct 2026) - [CVE-2026-89091: Red Hat ansible-core path traversal in collection install](https://junglewise.ai/threats/cve-2026-89091-a-flaw-was-found-in-ansible-core-when-installing-a-collection) (high, CVSS 8.8, published 8 Oct 2026) - [CVE-2026-75092: Red Hat leapp-repository privilege escalation in scan_mysql](https://junglewise.ai/threats/cve-2026-75092-red-hat-leapp-repository-privilege-escalation-in-scan-mysql) (high, CVSS 7.3, published 15 Sep 2026) - [CVE-2026-84828: PCS arbitrary file read via pcs host auth --token](https://junglewise.ai/threats/cve-2026-84828-pcs-arbitrary-file-read-via-pcs-host-auth-token) (medium, CVSS 6.5, published 10 Sep 2026) - [CVE-2026-87853: SSSD IdP authentication prefix comparison authentication bypass](https://junglewise.ai/threats/cve-2026-87853-sssd-idp-authentication-prefix-comparison-authentication-bypass) (high, CVSS 7.5, published 9 Sep 2026) - [CVE-2026-53362: Linux Kernel buffer overflow in IPv6 paged allocation](https://junglewise.ai/threats/cve-2026-53362-linux-kernel-buffer-overflow-in-ipv6-paged-allocation) (critical, exploited in the wild, CVSS 6.2, published 4 Jul 2026) - [CVE-2026-44293: protobufjs code injection in toObject function generation](https://junglewise.ai/threats/cve-2026-44293-protobufjs-code-injection-in-toobject-function-generation) (high, CVSS 8.8, published 13 May 2026) - [CVE-2026-42899: Microsoft ASP.NET Core infinite loop denial of service](https://junglewise.ai/threats/cve-2026-42899-microsoft-asp-net-core-infinite-loop-denial-of-service) (high, CVSS 7.5, published 12 May 2026) - [CVE-2026-33814: Go net/http infinite loop in HTTP/2 SETTINGS frame processing](https://junglewise.ai/threats/cve-2026-33814-go-net-http-infinite-loop-in-http-2-settings-frame-processing) (high, CVSS 7.5, published 7 May 2026) - [CVE-2026-31812: Quinn quinn-proto denial of service via malformed QUIC packet](https://junglewise.ai/threats/cve-2026-31812-quinn-quinn-proto-denial-of-service-via-malformed-quic-packet) (medium, CVSS 5.3, published 10 Mar 2026) - [CVE-2026-3338: AWS AWS-LC signature verification bypass in PKCS7_verify](https://junglewise.ai/threats/cve-2026-3338-aws-aws-lc-signature-verification-bypass-in-pkcs7-verify) (high, CVSS 7.5, published 2 Mar 2026) - [CVE-2026-3336: AWS AWS-LC certificate chain validation bypass in PKCS7_verify](https://junglewise.ai/threats/cve-2026-3336-aws-aws-lc-certificate-chain-validation-bypass-in-pkcs7-verify) (high, CVSS 7.5, published 2 Mar 2026) - [CVE-2026-2777: Mozilla Firefox and Thunderbird privilege escalation in Messaging System](https://junglewise.ai/threats/cve-2026-2777-mozilla-firefox-and-thunderbird-privilege-escalation-in-messaging) (critical, CVSS 9.8, published 24 Feb 2026) - [CVE-2026-25985: ImageMagick excessive memory allocation in SVG decoder](https://junglewise.ai/threats/cve-2026-25985-imagemagick-excessive-memory-allocation-in-svg-decoder) (high, CVSS 7.5, published 24 Feb 2026) - [CVE-2026-26007: PyCA cryptography missing subgroup validation in SECT curves](https://junglewise.ai/threats/cve-2026-26007-pyca-cryptography-missing-subgroup-validation-in-sect-curves) (medium, CVSS 6.5, published 10 Feb 2026) ## Most severe Red Hat Enterprise Linux vulnerabilities - [CVE-2026-53362: Linux Kernel buffer overflow in IPv6 paged allocation](https://junglewise.ai/threats/cve-2026-53362-linux-kernel-buffer-overflow-in-ipv6-paged-allocation) (critical, exploited in the wild, CVSS 6.2, published 4 Jul 2026) - [CVE-2026-2777: Mozilla Firefox and Thunderbird privilege escalation in Messaging System](https://junglewise.ai/threats/cve-2026-2777-mozilla-firefox-and-thunderbird-privilege-escalation-in-messaging) (critical, CVSS 9.8, published 24 Feb 2026) - [CVE-2026-44293: protobufjs code injection in toObject function generation](https://junglewise.ai/threats/cve-2026-44293-protobufjs-code-injection-in-toobject-function-generation) (high, CVSS 8.8, published 13 May 2026) - [CVE-2026-89091: Red Hat ansible-core path traversal in collection install](https://junglewise.ai/threats/cve-2026-89091-a-flaw-was-found-in-ansible-core-when-installing-a-collection) (high, CVSS 8.8, published 8 Oct 2026) - [CVE-2026-42899: Microsoft ASP.NET Core infinite loop denial of service](https://junglewise.ai/threats/cve-2026-42899-microsoft-asp-net-core-infinite-loop-denial-of-service) (high, CVSS 7.5, published 12 May 2026) - [CVE-2026-33814: Go net/http infinite loop in HTTP/2 SETTINGS frame processing](https://junglewise.ai/threats/cve-2026-33814-go-net-http-infinite-loop-in-http-2-settings-frame-processing) (high, CVSS 7.5, published 7 May 2026) - [CVE-2026-25985: ImageMagick excessive memory allocation in SVG decoder](https://junglewise.ai/threats/cve-2026-25985-imagemagick-excessive-memory-allocation-in-svg-decoder) (high, CVSS 7.5, published 24 Feb 2026) - [CVE-2026-87853: SSSD IdP authentication prefix comparison authentication bypass](https://junglewise.ai/threats/cve-2026-87853-sssd-idp-authentication-prefix-comparison-authentication-bypass) (high, CVSS 7.5, published 9 Sep 2026) - [CVE-2026-3338: AWS AWS-LC signature verification bypass in PKCS7_verify](https://junglewise.ai/threats/cve-2026-3338-aws-aws-lc-signature-verification-bypass-in-pkcs7-verify) (high, CVSS 7.5, published 2 Mar 2026) - [CVE-2026-3336: AWS AWS-LC certificate chain validation bypass in PKCS7_verify](https://junglewise.ai/threats/cve-2026-3336-aws-aws-lc-certificate-chain-validation-bypass-in-pkcs7-verify) (high, CVSS 7.5, published 2 Mar 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, down 50% on the four before (2). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 2 | 0 | 0 | | 14 Sep 2026 | 1 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 1 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 1 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Red Hat technologies - [Red Hat Enterprise Linux 9](https://junglewise.ai/threats/technologies/enterprise-linux-9): 146 vulnerabilities - [Red Hat Enterprise Linux 10](https://junglewise.ai/threats/technologies/enterprise-linux-10): 140 vulnerabilities - [Red Hat Enterprise Linux 8](https://junglewise.ai/threats/technologies/enterprise-linux-8): 132 vulnerabilities - [Red Hat Keycloak](https://junglewise.ai/threats/technologies/red-hat-keycloak): 102 vulnerabilities - [Red Hat Enterprise Linux 7](https://junglewise.ai/threats/technologies/enterprise-linux-7): 68 vulnerabilities - [Red Hat Enterprise Linux 6](https://junglewise.ai/threats/technologies/enterprise-linux-6): 56 vulnerabilities - [Red Hat Build of Keycloak](https://junglewise.ai/threats/technologies/red-hat-build-of-keycloak): 55 vulnerabilities - [Red Hat Enterprise Linux AppStream](https://junglewise.ai/threats/technologies/enterprise-linux-appstream): 46 vulnerabilities - [Red Hat Ansible Automation Platform](https://junglewise.ai/threats/technologies/ansible-automation-platform-2): 44 vulnerabilities - [Red Hat OpenShift Container Platform 4](https://junglewise.ai/threats/technologies/openshift-container-platform-4): 36 vulnerabilities - [Red Hat Developer Hub](https://junglewise.ai/threats/technologies/developer-hub): 28 vulnerabilities - [Red Hat Quay](https://junglewise.ai/threats/technologies/quay-3-12): 20 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Red Hat Enterprise Linux vulnerabilities", https://junglewise.ai/threats/technologies/red-hat-enterprise-linux, 13 November 2026.