{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40494 exists.","fix":"Apply the vendor's patch.","what":"CVE-2026-40494 is a critical memory corruption vulnerability in HappySeaFox sail, published on 18 Apr 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-2026-40494 and fix it if it is affected.\n\nWhat it is: CVE-2026-40494 is a critical memory corruption vulnerability in HappySeaFox sail, published on 18 Apr 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-2026-40494 exists.\n\nAffected product: HappySeaFox sail. 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-2026-40494/ (Markdown: https://insights.sbomify.com/CVE-2026-40494/index.md)","id":"CVE-2026-40494","markdown":"https://insights.sbomify.com/CVE-2026-40494/index.md","name":"CVE-2026-40494","record":{"aliases":["DEBIAN-CVE-2026-40494","GHSA-cp2j-rwh4-r46f","UBUNTU-CVE-2026-40494"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Image loading library","requires_auth":"none","summary":"A heap buffer overflow in the SAIL image library's TGA RLE decoder allows attackers to execute arbitrary code or cause denial of service via crafted images.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","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-787","name":"Out-of-bounds Write"}],"description":"SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302, the TGA codec's RLE decoder in `tga.c` has an asymmetric bounds check vulnerability. The run-packet path (line 297) correctly clamps the repeat count to the remaining buffer space, but the raw-packet path (line 305-311) has no equivalent bounds check. This allows writing up to 496 bytes of attacker-controlled data past the end of a heap buffer. Commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302 patches the issue.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"SAIL has heap buffer overflow in TGA RLE decoder — raw packet path missing bounds check","id":"CVE-2026-40494","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"FOSSBilling version exposed via asset cache buster","id":"CVE-2026-40495"},"packages":[],"prev":{"headline":"SAIL has heap buffer overflow in PSD decoder — bpp mismatch in LAB 16-bit mode","id":"CVE-2026-40493"},"products":["sail"],"published":"2026-04-18","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":"2026-04-20","vendors":["HappySeaFox"]},"summary":"A heap buffer overflow in the SAIL image library's TGA RLE decoder allows attackers to execute arbitrary code or cause denial of service via crafted images.","url":"https://insights.sbomify.com/CVE-2026-40494/"}