{"answers":{"affected":"3 open source packages ship an affected version, including aws-lc-sys. It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-3338 in the wild and no public exploit code.","fix":"Upgrade aws-lc-sys to 0.38.0 or later.","what":"CVE-2026-3338 is a high-severity vulnerability in AWS-LC, published on 2 Mar 2026."},"fix_prompt":"Check this codebase for CVE-2026-3338 and fix it if it is affected.\n\nWhat it is: CVE-2026-3338 is a high-severity vulnerability in AWS-LC, published on 2 Mar 2026. \nExploitation: There is no known exploitation of CVE-2026-3338 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- aws-lc-sys (crates.io): affected from 0.24.0; fixed in 0.38.0\n- aws-lc-sys (crates.io): affected from 0.24.0; fixed in 0.38.0\n- aws-lc-sys (crates.io): affected from 0.24.0; fixed in 0.38.0\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-2026-3338/ (Markdown: https://insights.sbomify.com/CVE-2026-3338/index.md)","id":"CVE-2026-3338","markdown":"https://insights.sbomify.com/CVE-2026-3338/index.md","name":"CVE-2026-3338","record":{"aliases":["CLEANSTART-2026-EL62572","GHSA-hfpc-8r3f-gw53","GHSA-jchq-39cv-q4wj","MINI-32hc-wxwp-7qg5","MINI-3396-3g4c-w9pw","MINI-59ph-56vg-f4gr","MINI-5ccg-v6jx-f9j9","MINI-5w44-gmjr-hvqc","MINI-74r7-hm67-9c4w","MINI-86m9-3wgp-r8wq","MINI-c3j4-cvph-cqwm","MINI-c644-w68f-7j7w","MINI-cpjx-pp23-gfcx","MINI-hvgp-qx33-5c6g","MINI-jhwm-2pxv-54vp","MINI-m94j-v9mm-j5fv","MINI-p4p9-3c3h-5j5v","MINI-pjj9-c8wf-mx38","MINI-wr67-qqj7-wx48","RUSTSEC-2026-0047"],"analysis":null,"analysis_generated_by":null,"assigner":"AMZN","cpe":[{"product":"aws-lc-sys","vendor":"amazon"},{"product":"aws_libcrypto","vendor":"amazon"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"Improper signature validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass signature verification when processing PKCS7 objects with Authenticated Attributes.\n\nCustomers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.","ecosystems":["crates.io"],"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":"PKCS7_verify Signature Validation Bypass in AWS-LC","id":"CVE-2026-3338","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":null,"year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Keep Backup Daily \u003c= 2.1.1 - Authenticated (Admin+) Limited Path Traversal via 'kbd_path' Parameter","id":"CVE-2026-3339"},"packages":[{"ecosystem":"crates.io","fixed":["0.38.0"],"introduced":["0.24.0"],"last_affected":[],"package":"aws-lc-sys","purl":null,"source":"GHSA-hfpc-8r3f-gw53"},{"ecosystem":"crates.io","fixed":["0.38.0"],"introduced":["0.24.0"],"last_affected":[],"package":"aws-lc-sys","purl":"pkg:cargo/aws-lc-sys","source":"GHSA-hfpc-8r3f-gw53"},{"ecosystem":"crates.io","fixed":["0.38.0"],"introduced":["0.24.0"],"last_affected":[],"package":"aws-lc-sys","purl":"pkg:cargo/aws-lc-sys","source":"RUSTSEC-2026-0047"}],"prev":{"headline":"Timing Side-Channel in AES-CCM Tag Verification in AWS-LC","id":"CVE-2026-3337"},"products":["AWS-LC"],"published":"2026-03-02","related":[{"cvss_score":8.7,"headline":"PKCS7_verify Certificate Chain Validation Bypass in AWS-LC","id":"CVE-2026-3336","kev_date_added":null,"published":"2026-03-02"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"},{"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":"2026-08-21","vendors":["AWS"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-3338/"}