{"answers":{"affected":"1 open source package ship an affected version, including postgresql. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-6477 in the wild and no public exploit code.","fix":"Upgrade postgresql to a fixed version for your release line: 14.23.0, 15.18.0, 16.14.0 or 17.10.0.","what":"CVE-2026-6477 is a high-severity memory corruption vulnerability in Postgresql Postgresql, published on 14 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-6477 and fix it if it is affected.\n\nWhat it is: CVE-2026-6477 is a high-severity memory corruption vulnerability in Postgresql Postgresql, published on 14 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-6477 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- postgresql (Bitnami): affected all versions; fixed in 14.23.0, 15.18.0, 16.14.0, 17.10.0, 18.4.0\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-2026-6477/ (Markdown: https://insights.sbomify.com/CVE-2026-6477/index.md)","id":"CVE-2026-6477","markdown":"https://insights.sbomify.com/CVE-2026-6477/index.md","name":"CVE-2026-6477","record":{"aliases":["ALPINE-CVE-2026-6477","ALSA-2026:44308","ALSA-2026:44391","AZL-86840","BELL-CVE-2026-6477","BIT-postgresql-2026-6477","CLSA-2026-1785227558","DEBIAN-CVE-2026-6477","ECHO-c9b4-8303-30f9","GHSA-jm5f-gpfq-q9h3","JLSEC-2026-604","MINI-3xhf-5359-pgqj","MINI-4w43-736r-h422","MINI-6cfw-rjrh-6frq","MINI-fmj9-9qcw-3pvh","MINI-m5f4-h59r-5gcr","MINI-phrj-3qr4-636j","RHSA-2026:44308","RHSA-2026:44391","RHSA-2026:47090","RHSA-2026:49908","RHSA-2026:49909","RHSA-2026:50779","RHSA-2026:50863","RLSA-2026:44308","RLSA-2026:44391","UBUNTU-CVE-2026-6477"],"analysis":{"component_type":"database","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"PostgreSQL client library","requires_auth":"none","summary":"A malicious server superuser can overwrite client stack memory in libpq via lo_* functions, potentially enabling code execution on the client.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"PostgreSQL","cpe":[{"product":"postgresql","vendor":"postgresql"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"},{"id":"CWE-242","name":"Use of Inherently Dangerous Function"}],"description":"Use of inherently dangerous function PQfn(..., result_is_int=0, ...) in PostgreSQL libpq lo_export(), lo_read(), lo_lseek64(), and lo_tell64() functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response.  Like gets(), PQfn(..., result_is_int=0, ...) stores arbitrary-length, server-determined data into a buffer of unspecified size.  Because both the \\lo_export command in psql and pg_dump call lo_read(), the server superuser can overwrite pg_dump or psql stack memory.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.","ecosystems":["AlmaLinux:10","AlmaLinux:9","Bitnami","Red Hat:enterprise_linux:10.2","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux_eus:10.0","Red Hat:rhel_aus:8.6::appstream","Red Hat:rhel_e4s:9.2::appstream","Red Hat:rhel_e4s:9.4::appstream","Red Hat:rhel_eus:9.6::appstream","Red Hat:rhel_eus_long_life:8.6::appstream","Rocky Linux:10","Rocky Linux:9"],"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":"PostgreSQL libpq lo_* functions let server superuser overwrite client stack memory","id":"CVE-2026-6477","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"postgresql:postgresql","products":["postgresql:postgresql"],"type":"memory_corruption","year":"2026"},"n_packages":47,"n_references":1,"next":{"headline":"PostgreSQL discloses MD5-hashed passwords via covert timing channel","id":"CVE-2026-6478"},"packages":[{"ecosystem":"Bitnami","fixed":["14.23.0","15.18.0","16.14.0","17.10.0","18.4.0"],"introduced":["0","15.0.0","16.0.0","17.0.0","18.0.0"],"last_affected":[],"package":"postgresql","purl":"pkg:bitnami/postgresql","source":"BIT-postgresql-2026-6477"},{"ecosystem":"AlmaLinux:10","fixed":["16.14-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"libpq","purl":"pkg:rpm/almalinux/libpq","source":"ALSA-2026:44391"},{"ecosystem":"AlmaLinux:10","fixed":["16.14-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"libpq-devel","purl":"pkg:rpm/almalinux/libpq-devel","source":"ALSA-2026:44391"},{"ecosystem":"AlmaLinux:9","fixed":["13.23-3.el9_8"],"introduced":["0"],"last_affected":[],"package":"libpq","purl":"pkg:rpm/almalinux/libpq","source":"ALSA-2026:44308"},{"ecosystem":"AlmaLinux:9","fixed":["13.23-3.el9_8"],"introduced":["0"],"last_affected":[],"package":"libpq-devel","purl":"pkg:rpm/almalinux/libpq-devel","source":"ALSA-2026:44308"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:16.14-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"libpq","purl":"pkg:rpm/redhat/libpq","source":"RHSA-2026:44391"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:16.14-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"libpq-debuginfo","purl":"pkg:rpm/redhat/libpq-debuginfo","source":"RHSA-2026:44391"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:16.14-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"libpq-debugsource","purl":"pkg:rpm/redhat/libpq-debugsource","source":"RHSA-2026:44391"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:16.14-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"libpq-devel","purl":"pkg:rpm/redhat/libpq-devel","source":"RHSA-2026:44391"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:16.14-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"libpq-devel-debuginfo","purl":"pkg:rpm/redhat/libpq-devel-debuginfo","source":"RHSA-2026:44391"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:13.23-3.el9_8"],"introduced":["0"],"last_affected":[],"package":"libpq","purl":"pkg:rpm/redhat/libpq","source":"RHSA-2026:44308"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:13.23-3.el9_8"],"introduced":["0"],"last_affected":[],"package":"libpq-debuginfo","purl":"pkg:rpm/redhat/libpq-debuginfo","source":"RHSA-2026:44308"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:13.23-3.el9_8"],"introduced":["0"],"last_affected":[],"package":"libpq-debugsource","purl":"pkg:rpm/redhat/libpq-debugsource","source":"RHSA-2026:44308"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:13.23-3.el9_8"],"introduced":["0"],"last_affected":[],"package":"libpq-devel","purl":"pkg:rpm/redhat/libpq-devel","source":"RHSA-2026:44308"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:13.23-3.el9_8"],"introduced":["0"],"last_affected":[],"package":"libpq-devel-debuginfo","purl":"pkg:rpm/redhat/libpq-devel-debuginfo","source":"RHSA-2026:44308"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:16.14-0.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"libpq","purl":"pkg:rpm/redhat/libpq","source":"RHSA-2026:50863"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:16.14-0.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debuginfo","purl":"pkg:rpm/redhat/libpq-debuginfo","source":"RHSA-2026:50863"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:16.14-0.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debugsource","purl":"pkg:rpm/redhat/libpq-debugsource","source":"RHSA-2026:50863"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:16.14-0.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel","purl":"pkg:rpm/redhat/libpq-devel","source":"RHSA-2026:50863"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["0:16.14-0.el10_0.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel-debuginfo","purl":"pkg:rpm/redhat/libpq-devel-debuginfo","source":"RHSA-2026:50863"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:13.23-1.el8_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq","purl":"pkg:rpm/redhat/libpq","source":"RHSA-2026:47090"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:13.23-1.el8_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debuginfo","purl":"pkg:rpm/redhat/libpq-debuginfo","source":"RHSA-2026:47090"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:13.23-1.el8_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debugsource","purl":"pkg:rpm/redhat/libpq-debugsource","source":"RHSA-2026:47090"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:13.23-1.el8_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel","purl":"pkg:rpm/redhat/libpq-devel","source":"RHSA-2026:47090"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:13.23-1.el8_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel-debuginfo","purl":"pkg:rpm/redhat/libpq-devel-debuginfo","source":"RHSA-2026:47090"},{"ecosystem":"Red Hat:rhel_e4s:9.2::appstream","fixed":["0:13.23-1.el9_2.1"],"introduced":["0"],"last_affected":[],"package":"libpq","purl":"pkg:rpm/redhat/libpq","source":"RHSA-2026:49908"},{"ecosystem":"Red Hat:rhel_e4s:9.2::appstream","fixed":["0:13.23-1.el9_2.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debuginfo","purl":"pkg:rpm/redhat/libpq-debuginfo","source":"RHSA-2026:49908"},{"ecosystem":"Red Hat:rhel_e4s:9.2::appstream","fixed":["0:13.23-1.el9_2.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debugsource","purl":"pkg:rpm/redhat/libpq-debugsource","source":"RHSA-2026:49908"},{"ecosystem":"Red Hat:rhel_e4s:9.2::appstream","fixed":["0:13.23-1.el9_2.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel","purl":"pkg:rpm/redhat/libpq-devel","source":"RHSA-2026:49908"},{"ecosystem":"Red Hat:rhel_e4s:9.2::appstream","fixed":["0:13.23-1.el9_2.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel-debuginfo","purl":"pkg:rpm/redhat/libpq-devel-debuginfo","source":"RHSA-2026:49908"},{"ecosystem":"Red Hat:rhel_e4s:9.4::appstream","fixed":["0:13.23-1.el9_4.1"],"introduced":["0"],"last_affected":[],"package":"libpq","purl":"pkg:rpm/redhat/libpq","source":"RHSA-2026:49909"},{"ecosystem":"Red Hat:rhel_e4s:9.4::appstream","fixed":["0:13.23-1.el9_4.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debuginfo","purl":"pkg:rpm/redhat/libpq-debuginfo","source":"RHSA-2026:49909"},{"ecosystem":"Red Hat:rhel_e4s:9.4::appstream","fixed":["0:13.23-1.el9_4.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debugsource","purl":"pkg:rpm/redhat/libpq-debugsource","source":"RHSA-2026:49909"},{"ecosystem":"Red Hat:rhel_e4s:9.4::appstream","fixed":["0:13.23-1.el9_4.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel","purl":"pkg:rpm/redhat/libpq-devel","source":"RHSA-2026:49909"},{"ecosystem":"Red Hat:rhel_e4s:9.4::appstream","fixed":["0:13.23-1.el9_4.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel-debuginfo","purl":"pkg:rpm/redhat/libpq-devel-debuginfo","source":"RHSA-2026:49909"},{"ecosystem":"Red Hat:rhel_eus:9.6::appstream","fixed":["0:13.23-1.el9_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq","purl":"pkg:rpm/redhat/libpq","source":"RHSA-2026:50779"},{"ecosystem":"Red Hat:rhel_eus:9.6::appstream","fixed":["0:13.23-1.el9_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debuginfo","purl":"pkg:rpm/redhat/libpq-debuginfo","source":"RHSA-2026:50779"},{"ecosystem":"Red Hat:rhel_eus:9.6::appstream","fixed":["0:13.23-1.el9_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq-debugsource","purl":"pkg:rpm/redhat/libpq-debugsource","source":"RHSA-2026:50779"},{"ecosystem":"Red Hat:rhel_eus:9.6::appstream","fixed":["0:13.23-1.el9_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel","purl":"pkg:rpm/redhat/libpq-devel","source":"RHSA-2026:50779"},{"ecosystem":"Red Hat:rhel_eus:9.6::appstream","fixed":["0:13.23-1.el9_6.1"],"introduced":["0"],"last_affected":[],"package":"libpq-devel-debuginfo","purl":"pkg:rpm/redhat/libpq-devel-debuginfo","source":"RHSA-2026:50779"}],"prev":{"headline":"PostgreSQL pg_createsubscriber allows SQL injection via subscription name","id":"CVE-2026-6476"},"products":["PostgreSQL"],"published":"2026-05-14","related":[{"cvss_score":10,"headline":"Information disclosure in n/a","id":"CVE-2013-1902","kev_date_added":null,"published":"2013-04-04"},{"cvss_score":10,"headline":"Information disclosure in n/a","id":"CVE-2013-1903","kev_date_added":null,"published":"2013-04-04"},{"cvss_score":10,"headline":"Privilege escalation in n/a","id":"CVE-2007-3279","kev_date_added":null,"published":"2007-06-19"},{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2002-1399","kev_date_added":null,"published":"2003-01-08"},{"cvss_score":9.1,"headline":"Information disclosure in n/a","id":"CVE-2016-3065","kev_date_added":null,"published":"2016-04-11"},{"cvss_score":9,"headline":"Code injection in n/a","id":"CVE-2007-3280","kev_date_added":null,"published":"2007-06-19"},{"cvss_score":8.8,"headline":"PostgreSQL tsvector and tsquery undersize allocations, via integer wraparound","id":"CVE-2026-14662","kev_date_added":null,"published":"2026-08-13"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-25","vendors":["n/a"]},"summary":"A malicious server superuser can overwrite client stack memory in libpq via lo_* functions, potentially enabling code execution on the client.","url":"https://insights.sbomify.com/CVE-2026-6477/"}