{"id":"CVE-2026-115729","kind":"vulnerability","aliases":["CVE-2026-115729"],"related":[],"title":"pdfme: SSRF bypass lets requests reach internal and cloud metadata","description":"@pdfme/common from 5.5.10 before 6.2.6 contains a server-side request forgery vulnerability that allows attackers to bypass the isUrlSafeToFetch denylist in getB64BasePdf. Attackers can supply basePdf URLs using IPv4-mapped IPv6, [::], NAT64 or localhost alias hostnames to read loopback, internal or cloud metadata responses through generated documents.","summary":"The @pdfme/common package fetches a PDF base URL supplied by the caller, and its denylist can be bypassed with IPv4-mapped IPv6, [::], NAT64 or localhost alias hostnames. An attacker can read loopback, internal network and cloud metadata responses through the generated documents.","severity":"high","cvss":8.9,"epss":0.00442,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["cloud","node.js","package","pdfme","self-hosted"],"not_affected_if":["5.5.10-free-installs","basepdf-not-user-supplied"],"how_to_check":null,"fix":"Upgrade @pdfme/common to 6.2.6 or later.","status":"open","published_at":"2026-10-23T13:17:08+00:00","first_seen_at":"2026-10-23T21:57:33+00:00","triaged_at":"2026-10-23T22:31:10+00:00","updated_at":"2026-10-25T12:38:50+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-23T22:31:10Z","model":"claude-haiku-5-5","output":{"fix":"Upgrade @pdfme/common to 6.2.6 or later.","reach":"internet","title":"pdfme: SSRF bypass lets requests reach internal and cloud metadata","impact":"high","summary":"The @pdfme/common package fetches a PDF base URL supplied by the caller, and its denylist can be bypassed with IPv4-mapped IPv6, [::], NAT64 or localhost alias hostnames. An attacker can read loopback, internal network and cloud metadata responses through the generated documents.","category":"package","who_cares":["pdfme","node.js","self-hosted","cloud"],"confidence":0.7,"needs_auth":"unknown","worst_case":"internal services and cloud metadata responses readable through generated documents","analyst_note":"","how_to_check":"unknown","needs_analyst":false,"not_affected_if":["5.5.10-free-installs","basePdf-not-user-supplied"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000476,"input_tokens":2980,"output_tokens":356,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-115729':13A,16A '-2026':12A,15A '5.5.10':69C '6.2.6':71C 'alia':50B,103C 'allow':81C 'attack':53B,82C,90C 'base':30B 'basepdf':93C 'bypass':3A,41B,84C 'caller':35B 'cloud':9A,17B,60B,110C 'contain':72C 'cve':11A,14A 'denylist':38B,87C 'document':66B,115C 'fetch':27B 'forgeri':78C 'generat':65B,114C 'getb64basepdf':89C 'host':23B 'hostnam':51B,104C 'intern':7A,57B,108C 'ipv4':44B,97C 'ipv4-mapped':43B,96C 'ipv6':46B,99C 'isurlsafetofetch':86C 'let':4A 'localhost':49B,102C 'loopback':56B,107C 'map':45B,98C 'metadata':10A,61B,111C 'nat64':47B,100C 'network':58B 'node.js':18B 'packag':19B,26B 'pdf':29B 'pdfme':1A,20B 'pdfme/common':25B,67C 'reach':6A 'read':55B,106C 'request':5A,77C 'respons':62B,112C 'self':22B 'self-host':21B 'server':75C 'server-sid':74C 'side':76C 'ssrf':2A 'suppli':32B,92C 'url':31B,94C 'use':95C 'vulner':79C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-23T13:17:08+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/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-2026-115729","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115729","severity":null,"published_at":"2026-10-23T13:17:08+00:00","modified_at":"2026-10-23T19:57:42+00:00","first_seen_at":"2026-10-23T21:57:33+00:00","fetched_at":"2026-10-23T22:29:03+00:00","note":null},{"source":"epss","external_id":"CVE-2026-115729","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115729","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-25T12:38:50+00:00","fetched_at":"2026-10-25T12:38:50+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"}