{"id":"CVE-2026-114112","kind":"vulnerability","aliases":["CVE-2026-114112"],"related":[],"title":"Sharp: bundled libheif flaw lets crafted images run code on glibc Linux","description":"Sharp before 0.35.4 bundles a vulnerable libheif dependency that allows attackers to achieve possible remote code execution on glibc-based Linux by supplying crafted images. Attackers can submit malicious AVIF/HEIF input to applications processing untrusted images with sharp, triggering libheif decoding flaws to execute code.","summary":"Sharp versions before 0.35.4 ship a vulnerable copy of libheif, the HEIF/AVIF decoder. An attacker who supplies a crafted AVIF or HEIF image to an app that processes untrusted images with sharp may run code on the server.","severity":"high","cvss":8.9,"epss":0.00192,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["glibc-linux","image-upload","node.js","package","sharp"],"not_affected_if":["musl-based-linux","no-untrusted-image-input","static-images-only"],"how_to_check":"Run `npm ls sharp` and check the installed version is below 0.35.4.\nCheck whether the app accepts untrusted AVIF or HEIF uploads and processes them with sharp.","fix":"Upgrade sharp to 0.35.4 or later, then reinstall and redeploy.","status":"open","published_at":"2026-10-21T01:17:37+00:00","first_seen_at":"2026-10-23T21:57:28+00:00","triaged_at":"2026-10-23T22:33:23+00:00","updated_at":"2026-10-24T13:15:54+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-23T22:33:23Z","model":"claude-haiku-5-5","output":{"fix":"Upgrade sharp to 0.35.4 or later, then reinstall and redeploy.\nunknown","reach":"internet","title":"Sharp: bundled libheif flaw lets crafted images run code on glibc Linux","impact":"high","summary":"Sharp versions before 0.35.4 ship a vulnerable copy of libheif, the HEIF/AVIF decoder. An attacker who supplies a crafted AVIF or HEIF image to an app that processes untrusted images with sharp may run code on the server.","category":"package","who_cares":["sharp","node.js","glibc-linux","image-upload"],"confidence":0.6,"needs_auth":"unknown","worst_case":"Attacker runs code on the server by uploading a crafted image.","analyst_note":"Confirm the exact fixed version and whether the prebuilt binaries on musl or non-glibc systems are affected, using the NVD entry and the sharp release notes.","how_to_check":"Run `npm ls sharp` and check the installed version is below 0.35.4.\nCheck whether the app accepts untrusted AVIF or HEIF uploads and processes them with sharp.\nunknown","needs_analyst":true,"not_affected_if":["musl-based-linux","no-untrusted-image-input","static-images-only"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000535,"input_tokens":2950,"output_tokens":479,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-114112':15A,18A '-2026':14A,17A '0.35.4':31B,68C 'achiev':78C 'allow':75C 'app':53B 'applic':99C 'attack':42B,76C,92C 'avif':47B 'avif/heif':96C 'base':86C 'bundl':2A,69C 'code':9A,62B,81C,111C 'copi':35B 'craft':6A,46B,90C 'cve':13A,16A 'decod':40B,107C 'depend':73C 'execut':82C,110C 'flaw':4A,108C 'glibc':11A,20B,85C 'glibc-bas':84C 'glibc-linux':19B 'heif':49B 'heif/avif':39B 'imag':7A,23B,50B,57B,91C,102C 'image-upload':22B 'input':97C 'let':5A 'libheif':3A,37B,72C,106C 'linux':12A,21B,87C 'malici':95C 'may':60B 'node.js':25B 'packag':26B 'possibl':79C 'process':55B,100C 'remot':80C 'run':8A,61B 'server':65B 'sharp':1A,27B,28B,59B,66C,104C 'ship':32B 'submit':94C 'suppli':44B,89C 'trigger':105C 'untrust':56B,101C 'upload':24B 'version':29B 'vulner':34B,71C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-21T01:17:37+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114112","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114112","severity":null,"published_at":"2026-10-21T01:17:37+00:00","modified_at":"2026-10-22T16:53:20+00:00","first_seen_at":"2026-10-23T21:57:28+00:00","fetched_at":"2026-10-23T22:29:01+00:00","note":null},{"source":"epss","external_id":"CVE-2026-114112","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-114112","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T13:15:54+00:00","fetched_at":"2026-10-24T13:15:54+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}