{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-102556 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-102556 is a high-severity memory corruption vulnerability in Redhat Enterprise Linux, published on 29 Sep 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-2026-102556 and fix it if it is affected.\n\nWhat it is: CVE-2026-102556 is a high-severity memory corruption vulnerability in Redhat Enterprise Linux, published on 29 Sep 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-2026-102556 in the wild and no public exploit code.\n\nAffected product: Redhat Enterprise Linux. 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-2026-102556/ (Markdown: https://insights.sbomify.com/CVE-2026-102556/index.md)","id":"CVE-2026-102556","markdown":"https://insights.sbomify.com/CVE-2026-102556/index.md","name":"CVE-2026-102556","record":{"aliases":["AZL-105555","DEBIAN-CVE-2026-102556","ECHO-6a3f-94eb-497c","GHSA-q4x2-vf8m-46j5","ROOT-OS-DEBIAN-13-CVE-2026-102556","UBUNTU-CVE-2026-102556"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"libsoup HTTP library","requires_auth":"none","summary":"Heap buffer overflow in libsoup WebSocket handling allows attackers to cause crashes or execute code via crafted Pong frames.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"libsoup","vendor":"gnome"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"}],"description":"A flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a crash upon receiving a crafted Pong.","ecosystems":[],"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":"Libsoup: libsoup: heap buffer overflow from websocket pong signal type confusion","id":"CVE-2026-102556","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"redhat:enterprise_linux","products":["redhat:enterprise_linux"],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Libsoup: libsoup: heap buffer overflow during websocket message reassembly","id":"CVE-2026-102557"},"packages":[],"prev":{"headline":"Libsoup: libsoup: heap buffer overflow via uninitialized length in data-uri base64 decoding","id":"CVE-2026-102555"},"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 8.4 Advanced Mission Critical Update Support","Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On","Red Hat Enterprise Linux 9"],"published":"2026-09-29","related":[{"cvss_score":8.6,"headline":"Libsoup: libsoup: heap buffer overflow during websocket message reassembly","id":"CVE-2026-102557","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":8.6,"headline":"Libsoup: libsoup: heap buffer overflow during websocket receive-buffer growth","id":"CVE-2026-102558","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":8.6,"headline":"Libsoup: libsoup: heap buffer overflow during websocket client-frame masking","id":"CVE-2026-102559","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":8.6,"headline":"Libsoup: libsoup: heap buffer overflow during outgoing permessage-deflate buffer growth","id":"CVE-2026-102560","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":8.2,"headline":"Libsoup: libsoup: heap buffer overflow via uninitialized length in data-uri base64 decoding","id":"CVE-2026-102555","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":7.5,"headline":"Other in n/a","id":"CVE-2024-52530","kev_date_added":null,"published":"2024-11-11"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-10-29","vendors":["Red Hat"]},"summary":"Heap buffer overflow in libsoup WebSocket handling allows attackers to cause crashes or execute code via crafted Pong frames.","url":"https://insights.sbomify.com/CVE-2026-102556/"}