{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-12478 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-12478 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 14 Jul 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-2026-12478 and fix it if it is affected.\n\nWhat it is: CVE-2026-12478 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 14 Jul 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-2026-12478 in the wild and no public exploit code.\n\nAffected product: Red Hat Enterprise Linux 10. 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-2026-12478/ (Markdown: https://insights.sbomify.com/CVE-2026-12478/index.md)","id":"CVE-2026-12478","markdown":"https://insights.sbomify.com/CVE-2026-12478/index.md","name":"CVE-2026-12478","record":{"aliases":["DEBIAN-CVE-2026-12478","GHSA-6jpc-6452-qwq2","OESA-2026-3380","OESA-2026-3381","OESA-2026-3382","OESA-2026-3383","OESA-2026-3441","OESA-2026-3553","OESA-2026-3554","SUSE-SU-2026:23800-1","UBUNTU-CVE-2026-12478","openSUSE-SU-2026:11316-1","openSUSE-SU-2026:21871-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"libsoup HTTP library","requires_auth":"none","summary":"A malicious WebSocket server can trigger an out-of-bounds read in libsoup clients via crafted unmasked frames when payload size limits are disabled.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"The fix for CVE-2026-0716 (commit 6ff7ef0, libsoup 3.6.6) placed the integer overflow guard inside the if (masked) block, leaving unmasked server-to-client frames unprotected. A malicious WebSocket server can send a crafted unmasked frame with a payload length near UINT64_MAX to trigger an OOB read in a libsoup-based client when max_incoming_payload_size is set to 0.","ecosystems":["SUSE:Linux Micro 6.2","openSUSE:Leap 16.0","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":"2026-08-01","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-08-01T11:25:16Z","kind":"github_poc","ref":"https://github.com/Popy21/security-research","stars":0,"title":"Vulnerability research write-ups — CVE-2026-12478 (libsoup), Apple WebKit, Google VRP"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Libsoup: incomplete fix for cve-2026-0716: out-of-bounds read in libsoup websocket frame processing (unmasked path)","id":"CVE-2026-12478","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Path Traversal in keras-team/keras","id":"CVE-2026-12479"},"packages":[{"ecosystem":"SUSE:Linux Micro 6.2","fixed":["3.6.6-160000.3.1"],"introduced":["0"],"last_affected":[],"package":"libsoup","purl":"pkg:rpm/suse/libsoup\u0026distro=SUSE%20Linux%20Micro%206.2","source":"SUSE-SU-2026:23800-1"},{"ecosystem":"openSUSE:Leap 16.0","fixed":["3.6.6-160000.3.1"],"introduced":["0"],"last_affected":[],"package":"libsoup","purl":"pkg:rpm/opensuse/libsoup\u0026distro=openSUSE%20Leap%2016.0","source":"openSUSE-SU-2026:21871-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["3.6.6-7.1"],"introduced":["0"],"last_affected":[],"package":"libsoup","purl":"pkg:rpm/opensuse/libsoup\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11316-1"}],"prev":{"headline":"Gravity Booster \u003c= 5.26 - Authenticated (Editor+) Stored Cross-Site Scripting via 'stylerSettings' Parameter","id":"CVE-2026-12477"},"products":["Red Hat Enterprise Linux 10","Red Hat Enterprise Linux 6","Red Hat Enterprise Linux 7","Red Hat Enterprise Linux 8","Red Hat Enterprise Linux 9"],"published":"2026-07-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-16","vendors":["Red Hat"]},"summary":"A malicious WebSocket server can trigger an out-of-bounds read in libsoup clients via crafted unmasked frames when payload size limits are disabled.","url":"https://insights.sbomify.com/CVE-2026-12478/"}