CVE-2026-123540

LOW
INFO Priority: 0.00 BB Relevance: 29/100
Published: 2026-11-08 Modified: 2026-11-12 First seen: 2026-11-08 Status: active

Attack Surface

Network

CVSS Vector Breakdown

AV: Network
AC: High
PR: High
UI: Passive
S: X
AT: Present
VC: None
VI: Low
VA: None

Description

OpenAM before 16.1.4 contains an incomplete output encoding vulnerability that allows a SAML 1.x identity provider to alter attribute values by injecting unencoded content into the service provider auto-submitted form. Attackers controlling a trusted identity provider can craft assertion attribute names or values that reach the target application in modified form, undermining the integrity of received attributes.

Affected Software (2)

VendorProductVersion
OpenIdentityPlatform OpenAM 0 < 16.1.4
OpenIdentityPlatform OpenAM 0 < 16.1.4

Bug Bounty Relevance

29 / 100
✓ Network accessible

CVSS Score

2.0 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.18%
Raw Score 0.001840
Percentile 8.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00184
2026-11-12
0.00184
2026-11-10
0.00184
2026-11-09
0.00184
2026-11-08
0.00184

Intelligence Sources

mitre ref →
nvd ref →