{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34990 exists.","fix":"No fix published yet.","what":"CVE-2026-34990 is a medium-severity vulnerability in OpenPrinting cups, published on 3 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-34990 and fix it if it is affected.\n\nWhat it is: CVE-2026-34990 is a medium-severity vulnerability in OpenPrinting cups, published on 3 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34990 exists.\n\nAffected product: OpenPrinting cups. 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-2026-34990/ (Markdown: https://insights.sbomify.com/CVE-2026-34990/index.md)","id":"CVE-2026-34990","markdown":"https://insights.sbomify.com/CVE-2026-34990/index.md","name":"CVE-2026-34990","record":{"aliases":["ALPINE-CVE-2026-34990","AZL-81825","BELL-CVE-2026-34990","CLSA-2026-1786675343","DEBIAN-CVE-2026-34990","ECHO-f586-616e-6b78","GHSA-c54j-2vqw-wpwp","ROOT-OS-DEBIAN-12-CVE-2026-34990","ROOT-OS-DEBIAN-13-CVE-2026-34990","SUSE-SU-2026:1399-1","UBUNTU-CVE-2026-34990"],"analysis":{"component_type":"server_software","fix_type":"no_fix_stated","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"CUPS printing system","requires_auth":"low_privilege","summary":"Local attackers can steal admin tokens to create malicious print queues, enabling arbitrary root file overwrites and command execution.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"cups","vendor":"openprinting"}],"cvss":{"score":5,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:L","version":"4.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That token is enough to drive /admin/ requests on localhost, and the attacker can combine CUPS-Create-Local-Printer with printer-is-shared=true to persist a file:///... queue even though the normal FileDevice policy rejects such URIs. Printing to that queue gives an arbitrary root file overwrite; the PoC below uses that primitive to drop a sudoers fragment and demonstrate root command execution. At time of publication, there are no publicly available patches.","ecosystems":["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 Micro 5.2","SUSE:Linux Enterprise Micro 5.3","SUSE:Linux Enterprise Micro 5.4","SUSE:Linux Enterprise Micro 5.5","SUSE:Linux Enterprise Module for Basesystem 15 SP7","SUSE:Linux Enterprise Module for Desktop Applications 15 SP7","SUSE:Linux Enterprise Module for Development Tools 15 SP7","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 for SAP Applications 15 SP4","SUSE:Linux Enterprise Server for SAP Applications 15 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP6"],"exploits":{"exploitdb":0,"first_seen":"2026-08-06","github_poc":12,"max_poc_stars":29,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-09-27T19:41:06Z","kind":"github_poc","ref":"https://github.com/predyy/CVE-2026-34990","stars":29,"title":"CVE-2026-34990 minimal PoC. CUPS \u003c= 2.4.16 local privesc."},{"date":"2026-09-27T09:58:34Z","kind":"github_poc","ref":"https://github.com/0xc4rc3l/CVE-2026-34990-poc","stars":3,"title":null},{"date":"2026-09-27T18:24:03Z","kind":"github_poc","ref":"https://github.com/DENNISDGR/CVE-2026-34990-poc","stars":2,"title":"LPE PoC for CVE-2026-34990 using a CUPS root file write vulnerability."},{"date":"2026-09-27T21:38:26Z","kind":"github_poc","ref":"https://github.com/khush-613/CVE-2026-34990-poc","stars":2,"title":null},{"date":"2026-09-28T03:21:43Z","kind":"github_poc","ref":"https://github.com/Noorkhalel/CVE-2026-34990-CUPS-LPE-PoC","stars":2,"title":"Generic PoC for CVE-2026-34990 - CUPS 2.4.16 Local Privilege Escalation via Local token disclosure and arbitrary root file overwrite."},{"date":"2026-09-28T19:12:35Z","kind":"github_poc","ref":"https://github.com/ungabunga-ctf/CVE-2026-34990","stars":1,"title":"CVE-2026-34990 - OpenPrinting CUPS versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token."},{"date":"2026-08-06T04:46:51Z","kind":"github_poc","ref":"https://github.com/HORKimhab/CVE-2026-34990","stars":0,"title":"CVE-2026-34990 - Draft or Todo"},{"date":"2026-08-24T18:21:15Z","kind":"github_poc","ref":"https://github.com/TRX-0/CVE-2026-34990-cups-lpe","stars":0,"title":null}],"tier":"weaponised"},"has_fix":true,"headline":"OpenPrinting CUPS: Local print admin token disclosure using temporary printers","id":"CVE-2026-34990","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":17,"n_references":1,"next":{"headline":"Missing Encryption of Sensitive Data in antrea.io/antrea","id":"CVE-2026-34992"},"packages":[{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOS","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSS","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.2","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.2","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.3","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.3","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.4","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.4","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.5","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.5","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Desktop Applications 15 SP7","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP7","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP7","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP4-LTSS","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP5-LTSS","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSS","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP6-LTSS","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP4","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP5","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5","source":"SUSE-SU-2026:1399-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP6","fixed":["2.2.7-150000.3.86.1"],"introduced":["0"],"last_affected":[],"package":"cups","purl":"pkg:rpm/suse/cups\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6","source":"SUSE-SU-2026:1399-1"}],"prev":{"headline":"CI4MS: Profile \u0026 User Management Full Account Takeover for All-Roles \u0026 Privilege-Escalation via Stored DOM XSS","id":"CVE-2026-34989"},"products":["cups"],"published":"2026-04-03","related":[{"cvss_score":8,"headline":"cups has Authentication bypass with AuthType Negotiate","id":"CVE-2025-58060","kev_date_added":null,"published":"2025-09-11"},{"cvss_score":6.5,"headline":"Path traversal in cups","id":"CVE-2026-34978","kev_date_added":null,"published":"2026-04-03"},{"cvss_score":6.5,"headline":"cups: Remote DoS via null dereference","id":"CVE-2025-58364","kev_date_added":null,"published":"2025-09-11"},{"cvss_score":6.1,"headline":"OpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach `lp` code execution over the network","id":"CVE-2026-34980","kev_date_added":null,"published":"2026-04-03"},{"cvss_score":6,"headline":"OpenPrinting CUPS vulnerable to stack based out-of-bound write","id":"CVE-2025-61915","kev_date_added":null,"published":"2025-11-29"},{"cvss_score":5.7,"headline":"CUPS copy_model() creates a predictable PPD tempfile without O_EXCL/O_NOFOLLOW (symlink TOCTOU, lp → root)","id":"CVE-2026-55480","kev_date_added":null,"published":"2026-10-15"},{"cvss_score":5.3,"headline":"OpenPrinting CUPS: root-side banner file disclosure","id":"CVE-2026-61702","kev_date_added":null,"published":"2026-10-15"}],"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":"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-06","vendors":["OpenPrinting"]},"summary":"Local attackers can steal admin tokens to create malicious print queues, enabling arbitrary root file overwrites and command execution.","url":"https://insights.sbomify.com/CVE-2026-34990/"}