PT-2026-21351

🗓️ 19 Feb 2026 00:00:00Reported by Positive TechnologiesType

ptsecurity

ptsecurity🔗 dbugs.ptsecurity.com👁 7 Views

Werkzeug safe_join on Windows allowed device names in paths, causing read hang; fixed in 3.1.6.

Reporter	Title	Published	Views	Family All 40
IBM Security Bulletins	Security Bulletin: IBM Maximo Application Suite - IoT Component uses multiple third party dependencies which is vulnerable to multiple CVEs.	1 Apr 202607:22	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to Improper Name Handling in Werkzeug [CVE-2026-27199]	14 Apr 202615:11	–	ibm
IBM Security Bulletins	Security Bulletin: Security vulnerability in Python affects IBM Robotic Process Automation and IBM Robotic Process Automation for Cloud Pak	14 May 202613:58	–	ibm
IBM Security Bulletins	Security Bulletin: Location Service for ESRI Component uses cryptography-46.0.3, flask-3.1.2 and werkzeug-3.1.5 library which were vulnerable to CVE-2026-26007, CVE-2026-27205 and CVE-2026-27199 respectively	30 Mar 202615:08	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Maximo Application Suite - Visual Inspection component uses Werkzeug which is vulnerable to CVE-2026-27199	5 May 202608:38	–	ibm
IBM Security Bulletins	Security Bulletin: There is a vulnerability in werkzeug-3.1.5-py3-none-any.whl used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2026-27199)	6 Apr 202610:16	–	ibm
IBM Security Bulletins	Security Bulletin: Maximo AI Service uses werkzeug-3.1.5-py3-none-any.wh which is vulnerable to CVE-2026-27199.	6 Apr 202613:59	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Maximo Scheduler Optimizer uses werkzeug-3.1.5-py3-none-any.whl which is vulnerable to CVE-2026-27199	7 May 202614:29	–	ibm
IBM Security Bulletins	Security Bulletin: Denial of service, security controls bypass, and other vulnerabilities might affect IBM Storage Defender - Resiliency Service	20 Apr 202616:04	–	ibm
IBM Security Bulletins	Security Bulletin:Safe Join Function Vulnerability Fixed in Werkzeug v3.1.6	4 May 202612:46	–	ibm

Source	Link
t	www.t.me/msrcreports/3228
github	www.github.com/pallets/werkzeug/commit/f407712fdc60a09c2b3f4fe7db557703e5d9338d
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-27199
t	www.t.me/msrcreports/3297
osv	www.osv.dev/vulnerability/CVE-2026-27199
t	www.t.me/cveNotify/152697
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27199.json
github	www.github.com/pallets/werkzeug/releases/tag/3.1.6
t	www.t.me/CVEtracker/45350
twitter	www.twitter.com/CVEnew/status/2025154190717108708

03 Mar 2026 00:00Current

5.2Medium risk

Vulners AI Score5.2

CVSS 46.3

EPSS0.00027

SSVC

werkzeug safe join windows device names read hang version 3.1.6