{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110636 exists.","fix":"No fix has been published for CVE-2026-110636 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-110636 is a critical command injection vulnerability in revolunet pypdftk, published on 14 Oct 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-2026-110636 and fix it if it is affected.\n\nWhat it is: CVE-2026-110636 is a critical command injection vulnerability in revolunet pypdftk, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110636 exists.\n\nAffected product: revolunet pypdftk. 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-2026-110636/ (Markdown: https://insights.sbomify.com/CVE-2026-110636/index.md)","id":"CVE-2026-110636","markdown":"https://insights.sbomify.com/CVE-2026-110636/index.md","name":"CVE-2026-110636","record":{"aliases":["GHSA-hx4x-jq2f-pwr6"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Python PDF library","requires_auth":"none","summary":"Attackers can execute arbitrary OS commands by injecting shell metacharacters into PDF or output paths in pypdftk.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"pypdftk through 0.5 contains an OS command injection vulnerability in fill_form(), dump_data_fields(), and pdftk_cmd_util() that builds shell commands from caller-supplied paths. Attackers controlling pdf_path or out_file can inject shell metacharacters interpreted by subprocess.Popen with shell=True to execute OS commands as the Python process.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"pypdftk through 0.5 OS Command Injection via PDF and Output Paths","id":"CVE-2026-110636","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"buildebooks before 0.2.2 OS Command Injection via kindlegen EPUB File Name","id":"CVE-2026-110637"},"packages":[],"prev":{"headline":"webp-converter before 3.0.0 OS Command Injection via File Names and Options","id":"CVE-2026-110635"},"products":["pypdftk"],"published":"2026-10-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-20","vendors":["revolunet"]},"summary":"Attackers can execute arbitrary OS commands by injecting shell metacharacters into PDF or output paths in pypdftk.","url":"https://insights.sbomify.com/CVE-2026-110636/"}