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TI-2026-57170 Aliases CVE-2026-82866GHSA-4jj6-4ggm-xjcj

@pdfme/common before 5.5.10 SSRF via Unvalidated URL Fetch

Priority HIGH 72CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

@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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00347 28th percentileScored 2026-11-07
Fix Fixed common (pdfme): 5.5.10

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pdfmecommonbefore 5.5.105.5.10Patch availableCNA
  • common Vendorpdfme Affected before 5.5.10 Fixed in 5.5.10 Patch available CNA

Remediation

  • Fix · CNA common (pdfme) Fixed in 5.5.10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-82866
  2. 2026-10-03 Alias added: GHSA-4jj6-4ggm-xjcj

References

Advisory 1

  • TI-2026-79748 Server-side request forgery in @pdfme/common denylist bypass CVSS 4.0HIGH 8.9
  • TI-2025-33553 pdfme has Sandbox Escape and Prototype Pollution vulnerabilities in pdfme expression evaluation CVSS 3.1MEDIUM 6.1
  • TI-2026-57172 @pdfme/schemas before 5.5.9 Cross-Site Scripting via SVG CVSS 4.0MEDIUM 5.3
  • TI-2026-57171 @pdfme/schemas before 5.5.9 Cross-Site Scripting via Select CVSS 4.0MEDIUM 5.3
  • TI-2026-57169 pdfme schemas before 5.5.10 Cross-Site Scripting via i18n Label CVSS 4.0LOW 2.1
  • TI-2026-57168 pdfme pdf-lib before 5.5.10 Denial of Service via Decompression Bomb CVSS 4.0HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences