{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-54789 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-54789 is a high-severity memory corruption vulnerability in mod_auth_openidc, published on 21 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54789 and fix it if it is affected.\n\nWhat it is: CVE-2026-54789 is a high-severity memory corruption vulnerability in mod_auth_openidc, published on 21 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-54789 in the wild and no public exploit code.\n\nAffected product: mod_auth_openidc. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-54789/ (Markdown: https://insights.sbomify.com/CVE-2026-54789/index.md)","id":"CVE-2026-54789","markdown":"https://insights.sbomify.com/CVE-2026-54789/index.md","name":"CVE-2026-54789","record":{"aliases":["ALSA-2026:75581","ALSA-2026:79177","AZL-96984","CLSA-2026-1791839568","CLSA-2026-1792634626","DEBIAN-CVE-2026-54789","GHSA-vgr5-qcpp-x2pr","MGASA-2026-0381","OESA-2026-3009","OESA-2026-3010","OESA-2026-3011","OESA-2026-3012","RHSA-2026:69712","RHSA-2026:69713","RHSA-2026:69715","RHSA-2026:69716","RHSA-2026:69717","RHSA-2026:69718","RHSA-2026:69719","RHSA-2026:69720","RHSA-2026:75581","RHSA-2026:79177","RLSA-2026:75581","RLSA-2026:79177","SUSE-SU-2026:23593-1","SUSE-SU-2026:3915-1","SUSE-SU-2026:3952-1","SUSE-SU-2026:3953-1","UBUNTU-CVE-2026-54789","openSUSE-SU-2026:11582-1","openSUSE-SU-2026:21717-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache authentication module","requires_auth":"none","summary":"An out-of-bounds read and write in the state cookie parser of mod_auth_openidc allows attackers to potentially execute code or cause denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"mod_auth_openidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.19.4, an out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of `mod_auth_openidc`. The issue is fixed in version 2.4.19.4 by stopping the scan at the string terminator so a value-less token is rejected. No in-product workarounds are available. As a stop-gap, an upstream reverse proxy or WAF that rejects or normalizes malformed `Cookie` headers (tokens lacking `=`) can reduce exposure, but upgrading is the recommended remediation.","ecosystems":["AlmaLinux:10","AlmaLinux:9","Red Hat:enterprise_linux:10.2","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux_eus:10.0","Red Hat:rhel_aus:8.4::appstream","Red Hat:rhel_aus:8.6::appstream","Red Hat:rhel_e4s:8.8::appstream","Red Hat:rhel_e4s:9.2::appstream","Red Hat:rhel_e4s:9.4::appstream","Red Hat:rhel_els:7","Red Hat:rhel_eus:9.6::appstream","Red Hat:rhel_eus_long_life:8.4::appstream","Red Hat:rhel_eus_long_life:8.6::appstream","Red Hat:rhel_tus:8.8::appstream","Rocky Linux:10","Rocky Linux:9","SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","SUSE:Linux Enterprise Module for Server Applications 15 SP7","SUSE:Linux Enterprise Server 12 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP4-LTSS","SUSE:Linux Enterprise Server 15 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP6-LTSS","SUSE:Linux Enterprise Server 16.0","SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP4","SUSE:Linux Enterprise Server for SAP Applications 15 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP6","SUSE:Linux Enterprise Server for SAP applications 16.0","openSUSE:Leap 16.0","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"mod_auth_openidc has out-of-bounds read and write in state cookie parsing","id":"CVE-2026-54789","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":83,"n_references":2,"next":{"headline":"InvoicePlane: Second-order SQL injection through the unvalidated custom_field_table field in the Custom Fields module","id":"CVE-2026-54790"},"packages":[{"ecosystem":"AlmaLinux:10","fixed":["2.4.16.11-1.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc","purl":"pkg:rpm/almalinux/mod_auth_openidc","source":"ALSA-2026:75581"},{"ecosystem":"AlmaLinux:9","fixed":["2.4.16.11-1.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc","purl":"pkg:rpm/almalinux/mod_auth_openidc","source":"ALSA-2026:79177"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:2.4.16.11-1.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc","purl":"pkg:rpm/redhat/mod_auth_openidc","source":"RHSA-2026:75581"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:2.4.16.11-1.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc-debuginfo","purl":"pkg:rpm/redhat/mod_auth_openidc-debuginfo","source":"RHSA-2026:75581"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:2.4.16.11-1.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc-debugsource","purl":"pkg:rpm/redhat/mod_auth_openidc-debugsource","source":"RHSA-2026:75581"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:2.4.16.11-1.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc","purl":"pkg:rpm/redhat/mod_auth_openidc","source":"RHSA-2026:79177"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:2.4.16.11-1.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc-debuginfo","purl":"pkg:rpm/redhat/mod_auth_openidc-debuginfo","source":"RHSA-2026:79177"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:2.4.16.11-1.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc-debugsource","purl":"pkg:rpm/redhat/mod_auth_openidc-debugsource","source":"RHSA-2026:79177"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:2.4.15-4.el10_0.2"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc","purl":"pkg:rpm/redhat/mod_auth_openidc","source":"RHSA-2026:69719"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:2.4.15-4.el10_0.2"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc-debuginfo","purl":"pkg:rpm/redhat/mod_auth_openidc-debuginfo","source":"RHSA-2026:69719"},{"ecosystem":"Red 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Hat:rhel_els:7","fixed":["0:1.8.8-9.el7_9.2"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc","purl":"pkg:rpm/redhat/mod_auth_openidc","source":"RHSA-2026:69715"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:1.8.8-9.el7_9.2"],"introduced":["0"],"last_affected":[],"package":"mod_auth_openidc-debuginfo","purl":"pkg:rpm/redhat/mod_auth_openidc-debuginfo","source":"RHSA-2026:69715"}],"prev":{"headline":"dd-trace-rs: Unbounded W3C tracestate parsing may lead to DoS","id":"CVE-2026-54788"},"products":["mod_auth_openidc"],"published":"2026-08-21","related":[],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-02","vendors":["OpenIDC"]},"summary":"An out-of-bounds read and write in the state cookie parser of mod_auth_openidc allows attackers to potentially execute code or cause denial of service.","url":"https://insights.sbomify.com/CVE-2026-54789/"}