TI-2018-14819 Aliases CVE-2018-20857 GHSA-qpxp-5j56-gg3x

Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with…

LOW 35CWE-20Published 2019-07-26 · Updated 2024-08-05

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

Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with [email protected] followed by . and then the attacker's domain name.

Why it matters now

EPSS 0.01205 68th percentileScored 2026-11-07

Fix Fixed samlr (RubyGems): 2.6.2

SSVC decision points

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA
—	samlr (RubyGems)	before 2.6.2	2.6.2	Patch available	GHSA-qpxp-5j56-gg3x

— Vendor— Affected all versions Fixed in — No fix listed CNA
samlr (RubyGems) Vendor— Affected before 2.6.2 Fixed in 2.6.2 Patch available GHSA-qpxp-5j56-gg3x

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:zendesk:samlr::::::::	before 2.6.2	Vulnerable	Zendesk

cpe:2.3:a:zendesk:samlr:*:*:*:*:*:*:*:* Versions before 2.6.2 Vulnerable ·Zendesk

Remediation

Fix · GHSA-qpxp-5j56-gg3x samlr (RubyGems) Fixed in 2.6.2 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2018-20857
2026-10-03 Alias added: GHSA-qpxp-5j56-gg3x

References

Patch 1

https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2018-20857

Other 3

Sources

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