liketrek TREK OIDC Service oidcService.ts findOrCreateUser improper authentication

published 2026-08-25 2 mo ago modified 2026-08-27 2 mo ago also EUVD-2026-65473

cvss: 5.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits: 0; none known

A vulnerability was identified in liketrek TREK up to 3.0.22. The impacted element is the function findOrCreateUser of the file server/src/services/oidcService.ts of the component OIDC Service. Such manipulation leads to improper authentication. It is possible to launch the attack remotely. The attack requires a high level of complexity. The exploitability is regarded as difficult. Upgrading to version 3.1.0 is sufficient to resolve this issue. Upgrading the affected component is advised.

Patch / fix

fixed in 1 links 1

liketrek TREK 3.1.0

github.com/liketrek/TREK/releases/tag/v3.1.0 release

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 mo ago (2026-08-27)

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.3	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
CNA	3.1	5.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
CNA	3.0	5.6	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
CNA	2.0	5.1	AV:N/AC:H/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C
CNA	4.0	6.3	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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
CNA	3.1	5.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	5.1	AV:N/AC:H/Au:N/C:P/I:P/A:P

Affected products

liketrek TREK

Classification

Weakness

CWE-287 Improper Authentication

References

github.com /liketrek/TREK/releases/tag/v3.1.0
patch
vuldb.com /vuln/394941
vdb-entry, technical-description
vuldb.com /vuln/394941/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-78885
third-party-advisory
vuldb.com /submit/886931
third-party-advisory
github.com /mauriceboe/TREK/security/advisories/GHSA-fvgw-r58q-4cw4
related

Sources

CVE List CVE-2026-78885
NVD CVE-2026-78885

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