{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2026-59847 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-59847 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 21 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-2026-59847 and fix it if it is affected.\n\nWhat it is: CVE-2026-59847 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 21 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-2026-59847 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-2026-59847/ (Markdown: https://insights.sbomify.com/CVE-2026-59847/index.md)","id":"CVE-2026-59847","markdown":"https://insights.sbomify.com/CVE-2026-59847/index.md","name":"CVE-2026-59847","record":{"aliases":["AZL-93246","BELL-CVE-2026-59847","CLSA-2026-1785837599","DEBIAN-CVE-2026-59847","ECHO-c402-a16c-cfd9","GHSA-mq2j-7vq4-77m8","MINI-g3rj-8m59-2gh6","UBUNTU-CVE-2026-59847"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"SSH library","requires_auth":"none","summary":"An in-path attacker can modify SSH traffic without detection due to flawed AES-GCM integrity checks in the OpenSSL backend of libssh.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"libssh","vendor":"libssh"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"hardened_images","vendor":"redhat"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-1310","name":"Missing Ability to Patch ROM Code"},{"id":"CWE-253","name":"Incorrect Check of Function Return Value"}],"description":"A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-path attacker to modify plaintext on the wire without detection.","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":"Libssh: libssh: integrity downgrade via openssl aes-gcm tag verification","id":"CVE-2026-59847","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"redhat:enterprise_linux","products":["redhat:enterprise_linux","redhat:hardened_images"],"type":"other","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Libssh: libssh: denial of service via sftp responses with unknown request ids","id":"CVE-2026-59848"},"packages":[],"prev":{"headline":"Libssh: libssh: information disclosure via proxycommand %r username expansion","id":"CVE-2026-59846"},"products":["Red Hat Enterprise Linux 10","Red Hat Enterprise Linux 8","Red Hat Enterprise Linux 9","Red Hat Hardened Images"],"published":"2026-07-21","related":[{"cvss_score":8.8,"headline":"Libssh: libssh: authentication bypass via missing gssapi principal check","id":"CVE-2026-59851","kev_date_added":null,"published":"2026-07-21"},{"cvss_score":8.1,"headline":"Libssh: invalid return code for chacha20 poly1305 with openssl backend","id":"CVE-2025-5987","kev_date_added":null,"published":"2025-07-07"},{"cvss_score":7.8,"headline":"Libssh: libssh: insecure default configuration leads to local man-in-the-middle attacks on windows","id":"CVE-2025-14821","kev_date_added":null,"published":"2026-04-07"},{"cvss_score":7.5,"headline":"Memory corruption in n/a","id":"CVE-2012-4560","kev_date_added":null,"published":"2012-11-30"},{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2012-4562","kev_date_added":null,"published":"2012-11-30"},{"cvss_score":7.5,"headline":"Use after free in n/a","id":"CVE-2012-6063","kev_date_added":null,"published":"2012-11-30"},{"cvss_score":6.9,"headline":"libssh SFTP Extension Name sftp.c sftp_extensions_get_data out-of-bounds","id":"CVE-2026-3731","kev_date_added":null,"published":"2026-03-08"}],"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":"2026-09-01","vendors":["Red Hat"]},"summary":"An in-path attacker can modify SSH traffic without detection due to flawed AES-GCM integrity checks in the OpenSSL backend of libssh.","url":"https://insights.sbomify.com/CVE-2026-59847/"}