XML External Entity (XXE) vulnerability in esaml (and its forks) allows an attacker to cause the system to read local files and incorporate their contents into processed SAML documents, and potential…
Medium CVSS 5.3
Summary
XML External Entity (XXE) vulnerability in esaml (and its forks) allows an attacker to cause the system to read local files and incorporate their contents into processed SAML documents, and potentially perform SSRF via crafted SAML messages. esaml parses attacker-controlled SAML messages using xmerl_scan:string/2 before signature verification without disabling XML entity expansion. On Erlang/OTP versions before 27, Xmerl allows entities by default, enabling pre-signature XXE attacks. An attack…
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Sources
- NVD DATABASE
Original Links
- https://cna.erlef.org/cves/CVE-2026-28809.html Patch
- https://github.com/Jump-App/esaml/commit/bab85efde7c136911402a881ca55173759467a26 Patch
- https://osv.dev/vulnerability/EEF-CVE-2026-28809 Third Party Advisory
Timeline
- nvd_ingest NVD