TI-2026-76225 Aliases CVE-2026-112040 GHSA-2fp3-3pqm-j39r

Open redirect in diem-project diem Sign-In via Referer argument

MEDIUM 63CWE-601Published 2026-10-19 · Updated 2026-10-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Spoofing
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.

Summary

diem-project diem up to commit 116974edfb9a5b8bd69cb13586dc62bcdbb485ad has an open redirect flaw in its Sign-In component. Manipulating the Referer argument causes the redirect, which is tracked as CWE-601. A remote attacker can send a user to an arbitrary site if the user interacts with a crafted link. A public exploit has been disclosed and is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A vulnerability was determined in diem-project diem up to 116974edfb9a5b8bd69cb13586dc62bcdbb485ad. This affects an unknown part of the file dmCorePlugin/plugins/dmUserPlugin/modules/dmUser/lib/BasedmUserActions.class.php of the component Sign-In. This manipulation of the argument Referer causes open redirect. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project was informed of the problem early through an issue report but has not responded yet.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00258 17th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
diem-project	diem	116974edfb9a5b8bd69cb13586dc62bcdbb485ad	—	No fix listed	CNA

diem Vendordiem-project Affected 116974edfb9a5b8bd69cb13586dc62bcdbb485ad Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:diem-project:diem::::::::	—	—	—

cpe:2.3:a:diem-project:diem:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

The sources list no fixed version for diem.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

2026-10-19 Threatist record created from CVE-2026-112040
2026-10-19 Alias added: GHSA-2fp3-3pqm-j39r
2026-10-19 CISA SSVC decision points changed
2026-10-19 Priority changed: LOW → MEDIUM

References

Exploit 1

https://github.com/diem-project/diem/issues/457

Other 1

https://github.com/diem-project/diem/

TI-2026-58972 diem-project diem dmWidget BasedmWidgetActions.class.php authorization CVSS 4.0MEDIUM 6.9
TI-2026-76226 Weak random number generator in diem-project diem dmString.php CVSS 4.0MEDIUM 6.3
TI-2026-76222 Improper certificate validation in diem Google Analytics Client CVSS 4.0MEDIUM 6.3
TI-2026-76213 Use of default password in diem-project diem CVSS 4.0MEDIUM 5.3
TI-2026-58971 diem-project diem dmConsole actions.class.php executeCommand cross-site request forgery CVSS 4.0MEDIUM 5.3
TI-2026-57013 diem-project diem Widget Editor dmWidgetContentBaseMediaForm.php unrestricted upload CVSS 4.0MEDIUM 5.3

See all 12 →

Sources

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