CVE-2026-10546 json
DNS Rebinding TOCTOU Bypass of SSRF Protection in Langflow OSS URL Component
published 2026-06-30 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-40402
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
IBM Langflow OSS 1.0.0 through 1.9.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the URL component ( src/lfx/src/lfx/components/data_source/url.py ) due to a Time-of-Check/Time-of-Use (TOCTOU) race condition that can be exploited via DNS rebinding.
Patch / fix
- ibm.com/support/pages/node/7277560 advisory
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
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 | 7.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N |
Affected products
- IBM Langflow OSS
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
ibm.com
/support/pages/node/7277560
vendor-advisory, patch
Sources
- CVE List CVE-2026-10546
- NVD CVE-2026-10546
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