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LightSAML version prior to 1.3.5 contains a Incorrect Access Control vulnerability in…

Priority LOW 35CWE-732Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.

Summary

LightSAML version prior to 1.3.5 contains a Incorrect Access Control vulnerability in signature validation in readers in src/LightSaml/Model/XmlDSig/ that can result in impersonation of any user from Identity Provider. This vulnerability appears to have been fixed in 1.3.5 and later.

Why it matters now

EPSS 0.01224 68th percentileScored 2026-11-07
Fix Fixed lightsaml/lightsaml (Packagist): 1.3.5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—lightsaml/lightsaml (Packagist)before 1.3.51.3.5Patch availableGHSA-vg4f-8v9q-5c3x
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • lightsaml/lightsaml (Packagist) Vendor— Affected before 1.3.5 Fixed in 1.3.5 Patch available GHSA-vg4f-8v9q-5c3x

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:lightsaml:lightsaml:*:*:*:*:*:*:*:*before 1.3.5VulnerableLightsaml
  • cpe:2.3:a:lightsaml:lightsaml:*:*:*:*:*:*:*:* Versions before 1.3.5 Vulnerable ·Lightsaml

Remediation

  • Fix · GHSA-vg4f-8v9q-5c3x lightsaml/lightsaml (Packagist) Fixed in 1.3.5 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000165
  2. 2026-10-03 Alias added: GHSA-vg4f-8v9q-5c3x

References

Sources