SSRF in Pdfme Common
CVE-2026-82866
@pdfme/common before 5.5.10 contains a server-side request forgery vulnerability in the getB64BasePdf function that fetches arbitrary URLs without validation when basePdf is attacker-controlled. Attackers who control the basePdf template field can force servers or clients to make requests to internal endpoints, enabling metadata exfiltration, network reconnaissance, and blind request forgery attacks.
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
EPSS: 0.003 (26.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/pdfme/pdfme/security/advisories/GHSA-pgx6-7jcq-2qff (vendor-advisory)
- www.vulncheck.com/advisories/pdfme-common-before-5.5.10-ssrf-via-unvalidated-ur… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-82866?
- CVE-2026-82866 is a medium-severity vulnerability in Pdfme Common, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.8/10. Published 2026-08-31.
- How severe is CVE-2026-82866?
- Medium severity. CVSS v3 base score is 6.8 out of 10.