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Vulnerability record · CVE-2017-11667 · published 26 July 2017

CVE-2017-11667: Openproject insufficient session expiration vulnerability

Openproject · Openproject

OpenProject before 6.1.6 and 7.x before 7.0.3 mishandles session expiry, which allows remote attackers to perform APIv3 requests indefinitely by leveraging a hijacked session.

8.1 CVSS 3.0 High EPSS 1.4% · top 28.2% CWE-613 · Insufficient session expiration
8.1CVSS 3.0 base score, v2 6.8
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

OpenProject before 6.1.6 and 7.x before 7.0.3 mishandles session expiry, which allows remote attackers to perform APIv3 requests indefinitely by leveraging a hijacked session.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/opf/openproject/commit/0fdd7578909d2ec50abc275fc4962e99566437ee Patch
https://www.openproject.org/openproject-6-1-6-released-security-fix/ Vendor Advisory
https://www.openproject.org/openproject-7-0-3-released/ Vendor Advisory
https://github.com/opf/openproject/commit/0fdd7578909d2ec50abc275fc4962e99566437ee Patch
https://www.openproject.org/openproject-6-1-6-released-security-fix/ Vendor Advisory
https://www.openproject.org/openproject-7-0-3-released/ Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-11667), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.