{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2020-36846 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-36846 is a critical vulnerability in TIMLEGGE IO::Compress::Brotli, published on 30 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-36846 and fix it if it is affected.\n\nWhat it is: CVE-2020-36846 is a critical vulnerability in TIMLEGGE IO::Compress::Brotli, published on 30 May 2025. 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-2020-36846 in the wild and no public exploit code.\n\nAffected product: TIMLEGGE IO::Compress::Brotli. 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-2020-36846/ (Markdown: https://insights.sbomify.com/CVE-2020-36846/index.md)","id":"CVE-2020-36846","markdown":"https://insights.sbomify.com/CVE-2020-36846/index.md","name":"CVE-2020-36846","record":{"aliases":["GHSA-44qx-v2f9-7rq9","UBUNTU-CVE-2020-36846"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Perl Brotli library","requires_auth":"none","summary":"An integer overflow in the bundled Brotli library allows attackers to cause a denial of service via large decompression inputs.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CPANSec","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-1395","name":"Dependency on Vulnerable Third-Party Component"}],"description":"A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.  Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a \"one-shot\" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007 or later. If one cannot update, we recommend to use the \"streaming\" API as opposed to the \"one-shot\" API, and impose chunk size limits.","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":"IO::Compress::Brotli versions prior to 0.007 for Perl have an integer overflow in the bundled Brotli C library","id":"CVE-2020-36846","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2020"},"n_packages":0,"n_references":5,"next":{"headline":"Simple File List \u003c 4.2.3 - Remote Code Execution","id":"CVE-2020-36847"},"packages":[],"prev":{"headline":"Open redirect in Security Awareness Training","id":"CVE-2020-36845"},"products":["IO::Compress::Brotli"],"published":"2025-05-30","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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-05-30","vendors":["TIMLEGGE"]},"summary":"An integer overflow in the bundled Brotli library allows attackers to cause a denial of service via large decompression inputs.","url":"https://insights.sbomify.com/CVE-2020-36846/"}