Goobi viewer: Predictable Replacement Password Allows Account Takeover After Password Reset

published 2026-10-23 16 d ago modified 2026-10-29 10 d ago also EUVD-2026-109086

cvss: 6.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits: 0; none known

The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. Prior to version 26.05, when a password reset link is visited, the application generates a replacement password in a predictable way and emails it to the account holder. The insufficient entropy allows the password to be brute-forced by an attacker who can approximate the server-side generation time. Exploiting this finding in isolation requires the victim to have triggered the reset themselves and the attacker to infer the server time from network or email metadata. This issue has been patched in version 26.05.

Patch / fix

links 3

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 10 d ago (2026-10-29)

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.8	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected products

intranda goobi-viewer-core

Classification

Weakness

CWE-330 Use of Insufficiently Random Values
CWE-340 Generation of Predictable Numbers or Identifiers
CWE-640 Weak Password Recovery Mechanism for Forgotten Password

References

Sources

CVE List CVE-2026-46347
NVD CVE-2026-46347

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary