{"id":"CVE-2026-116146","kind":"vulnerability","aliases":["CVE-2026-116146"],"related":[],"title":"ImageMagick: crafted MSL file leaks memory and exhausts server resources","description":"ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a memory leak in the MSL decoder that fails to release allocated memory when processing a crafted MSL image. Attackers can supply crafted MSL files for processing to repeatedly leak memory, causing resource exhaustion and denial of service.","summary":"ImageMagick's MSL decoder fails to free memory when it processes a crafted MSL image. An attacker who can get such files processed can repeat the leak until the host runs out of resources and the service stops responding.","severity":"medium","cvss":6.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["image-processing","imagemagick","package","self-hosted"],"not_affected_if":["msl-disabled","no-untrusted-input"],"how_to_check":"- Run `magick -version` and compare the reported version against the fixed releases.\n- Check whether the service accepts MSL input by looking for `.msl` handling or MSL in the accepted formats: unknown.","fix":"- Upgrade ImageMagick 6 to `6.9.13-58` or later.\n- Upgrade ImageMagick 7 to `7.1.2-33` or later.","status":"open","published_at":"2026-10-25T14:16:52+00:00","first_seen_at":"2026-10-25T14:41:22+00:00","triaged_at":"2026-10-25T14:42:55+00:00","updated_at":"2026-10-25T14:42:55+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-25T14:42:55Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade ImageMagick 6 to `6.9.13-58` or later.\n- Upgrade ImageMagick 7 to `7.1.2-33` or later.","reach":"network","title":"ImageMagick: crafted MSL file leaks memory and exhausts server resources","impact":"low","summary":"ImageMagick's MSL decoder fails to free memory when it processes a crafted MSL image. An attacker who can get such files processed can repeat the leak until the host runs out of resources and the service stops responding.","category":"package","nicknames":[],"who_cares":["imagemagick","self-hosted","image-processing"],"confidence":0.7,"needs_auth":"unknown","worst_case":"Repeated crafted files exhaust server memory and cause denial of service","analyst_note":"","how_to_check":"- Run `magick -version` and compare the reported version against the fixed releases.\n- Check whether the service accepts MSL input by looking for `.msl` handling or MSL in the accepted formats: unknown.","needs_analyst":false,"not_affected_if":["no-untrusted-input","msl-disabled"],"who_is_affected":"Services that run ImageMagick on files supplied by users or other outside parties are the ones exposed, since the attacker needs to get a crafted MSL file processed. Installations that only handle trusted local images, or that do not accept MSL input, face much less risk. The sources do not say whether a default configuration accepts MSL.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000601,"input_tokens":3343,"output_tokens":533,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-116146':13A,16A '-2026':12A,15A '-33':73C '-58':67C '6.9.13':66C '7':69C '7.1.2':72C 'alloc':86C 'attack':41B,94C 'caus':106C 'contain':74C 'craft':2A,37B,91C,97C 'cve':11A,14A 'decod':28B,81C 'denial':110C 'exhaust':8A,108C 'fail':29B,83C 'file':4A,46B,99C 'free':31B 'get':44B 'host':24B,54B 'imag':18B,39B,93C 'image-process':17B 'imagemagick':1A,20B,25B,64C 'leak':5A,51B,77C,104C 'memori':6A,32B,76C,87C,105C 'msl':3A,27B,38B,80C,92C,98C 'packag':21B 'process':19B,35B,47B,89C,101C 'releas':85C 'repeat':49B,103C 'resourc':10A,58B,107C 'respond':63B 'run':55B 'self':23B 'self-host':22B 'server':9A 'servic':61B,112C 'stop':62B 'suppli':96C 'x':70C","nicknames":[],"mitigations":[],"who_affected":"Services that run ImageMagick on files supplied by users or other outside parties are the ones exposed, since the attacker needs to get a crafted MSL file processed. Installations that only handle trusted local images, or that do not accept MSL input, face much less risk. The sources do not say whether a default configuration accepts MSL.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-25T14:16:52+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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-2026-116146","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116146","severity":null,"published_at":"2026-10-25T14:16:52+00:00","modified_at":"2026-10-25T14:16:52+00:00","first_seen_at":"2026-10-25T14:41:22+00:00","fetched_at":"2026-10-25T14:41:22+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"}