SSRF in Pdfme Common
CVE-2026-115729
@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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/pdfme/pdfme/security/advisories/GHSA-2rg9-wxfw-wrr7 (vendor-advisory)
- github.com/pdfme/pdfme/commit/d03d0bc4994ce6921e152879793c5ff52c5600a6 (patch)
- github.com/pdfme/pdfme/security/advisories/GHSA-pgx6-7jcq-2qff (related, vendor-advisory)
- www.vulncheck.com/advisories/pdfme-common-5.5.10-before-6.2.6-ssrf-via-isurlsaf… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-115729?
- CVE-2026-115729 is a medium-severity vulnerability in Pdfme Common, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.8/10. Published 2026-10-23.
- How severe is CVE-2026-115729?
- Medium severity. CVSS v3 base score is 6.8 out of 10.