TI-2026-76210 Aliases CVE-2026-112029 GHSA-83h9-vcq9-fvwv

Weak SHA1 password hashing in diem-project diem user model

MEDIUM 44CWE-326Published 2026-10-18 · Updated 2026-10-19

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-326.

Summary

diem-project diem versions 5.1.0, 5.1.1, 5.1.2 and 5.1.3 are affected. The SHA1 handler in lib/model/doctrine/PluginDmUser.class.php hashes passwords with insufficient computational effort (CWE-916), which makes stored hashes easier to crack. A local attacker with low privileges can exploit it, but the attack is highly complex and difficult to perform. A public exploit has been disclosed and may be used.

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

Description from the CNA

A vulnerability has been found in diem-project diem up to 5.1.3. This affects an unknown part of the file lib/model/doctrine/PluginDmUser.class.php of the component SHA1 Handler. Such manipulation of the argument salt/password leads to password hash with insufficient computational effort. The attack needs to be performed locally. The attack requires a high level of complexity. It is indicated that the exploitability is difficult. The exploit has been disclosed to the public and may be used. 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 0.00078 0th 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: No
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	5.1.0; 5.1.1; 5.1.2; 5.1.3	—	No fix listed	CNA

diem Vendordiem-project Affected 5.1.0; 5.1.1; 5.1.2; 5.1.3 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-project diem.

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

Timeline

2026-10-18 Threatist record created from CVE-2026-112029
2026-10-19 Alias added: GHSA-83h9-vcq9-fvwv
2026-10-20 CISA SSVC decision points changed
2026-10-20 Priority changed: LOW → MEDIUM

References

Exploit 1

https://github.com/diem-project/diem/issues/452

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-2026-76225 Open redirect in diem-project diem Sign-In via Referer argument CVSS 4.0MEDIUM 5.3
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

See all 12 →

Sources

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