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Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-9103

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to gain unauthorized access due to improper authentication in the /api/v1/login/auto_login endpoint. The endpoint issues long-lived superuser bearer tokens without requiring authentication when the AUTO_LOGIN configuration is enabled (enabled by default), which may allow an unauthenticated network attacker to obtain full administrative access. Additionally, permissive cross-origin resource sharing (CORS) settings may allow tokens to be exposed to unintended origins, increasing the risk of unauthorized access.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.004

EPSS Ranking 33.4%

CVSS Severity

CVSS v3 Score 9.8

References

https://www.ibm.com/support/pages/node/7278926

Products affected by CVE-2026-9103

Langflow » Langflow » Version: 1.0.0

cpe:2.3:a:langflow:langflow:1.0.0
Langflow » Langflow » Version: 1.0.1

cpe:2.3:a:langflow:langflow:1.0.1
Langflow » Langflow » Version: 1.0.10

cpe:2.3:a:langflow:langflow:1.0.10
Langflow » Langflow » Version: 1.0.11

cpe:2.3:a:langflow:langflow:1.0.11
Langflow » Langflow » Version: 1.0.12

cpe:2.3:a:langflow:langflow:1.0.12
Langflow » Langflow » Version: 1.0.13

cpe:2.3:a:langflow:langflow:1.0.13
Langflow » Langflow » Version: 1.0.14

cpe:2.3:a:langflow:langflow:1.0.14
Langflow » Langflow » Version: 1.0.15

cpe:2.3:a:langflow:langflow:1.0.15
Langflow » Langflow » Version: 1.0.16

cpe:2.3:a:langflow:langflow:1.0.16
Langflow » Langflow » Version: 1.0.17

cpe:2.3:a:langflow:langflow:1.0.17
Langflow » Langflow » Version: 1.0.18

cpe:2.3:a:langflow:langflow:1.0.18
Langflow » Langflow » Version: 1.0.19

cpe:2.3:a:langflow:langflow:1.0.19
Langflow » Langflow » Version: 1.0.2

cpe:2.3:a:langflow:langflow:1.0.2
Langflow » Langflow » Version: 1.0.3

cpe:2.3:a:langflow:langflow:1.0.3
Langflow » Langflow » Version: 1.0.4

cpe:2.3:a:langflow:langflow:1.0.4
Langflow » Langflow » Version: 1.0.5

cpe:2.3:a:langflow:langflow:1.0.5
Langflow » Langflow » Version: 1.0.6

cpe:2.3:a:langflow:langflow:1.0.6
Langflow » Langflow » Version: 1.0.7

cpe:2.3:a:langflow:langflow:1.0.7
Langflow » Langflow » Version: 1.0.8

cpe:2.3:a:langflow:langflow:1.0.8
Langflow » Langflow » Version: 1.0.9

cpe:2.3:a:langflow:langflow:1.0.9
Langflow » Langflow » Version: 1.1.0

cpe:2.3:a:langflow:langflow:1.1.0
Langflow » Langflow » Version: 1.1.1

cpe:2.3:a:langflow:langflow:1.1.1
Langflow » Langflow » Version: 1.1.2

cpe:2.3:a:langflow:langflow:1.1.2
Langflow » Langflow » Version: 1.1.3

cpe:2.3:a:langflow:langflow:1.1.3
Langflow » Langflow » Version: 1.1.4

cpe:2.3:a:langflow:langflow:1.1.4
Langflow » Langflow » Version: 1.10.0

cpe:2.3:a:langflow:langflow:1.10.0
Langflow » Langflow » Version: 1.2.0

cpe:2.3:a:langflow:langflow:1.2.0
Langflow » Langflow » Version: 1.3.0

cpe:2.3:a:langflow:langflow:1.3.0
Langflow » Langflow » Version: 1.3.1

cpe:2.3:a:langflow:langflow:1.3.1
Langflow » Langflow » Version: 1.3.2

cpe:2.3:a:langflow:langflow:1.3.2
Langflow » Langflow » Version: 1.3.3

cpe:2.3:a:langflow:langflow:1.3.3
Langflow » Langflow » Version: 1.3.4

cpe:2.3:a:langflow:langflow:1.3.4
Langflow » Langflow » Version: 1.4.0

cpe:2.3:a:langflow:langflow:1.4.0
Langflow » Langflow » Version: 1.4.1

cpe:2.3:a:langflow:langflow:1.4.1
Langflow » Langflow » Version: 1.4.2

cpe:2.3:a:langflow:langflow:1.4.2
Langflow » Langflow » Version: 1.4.3

cpe:2.3:a:langflow:langflow:1.4.3
Langflow » Langflow » Version: 1.5.0

cpe:2.3:a:langflow:langflow:1.5.0
Langflow » Langflow » Version: 1.5.1

cpe:2.3:a:langflow:langflow:1.5.1
Langflow » Langflow » Version: 1.6.0

cpe:2.3:a:langflow:langflow:1.6.0
Langflow » Langflow » Version: 1.6.1

cpe:2.3:a:langflow:langflow:1.6.1
Langflow » Langflow » Version: 1.6.10

cpe:2.3:a:langflow:langflow:1.6.10
Langflow » Langflow » Version: 1.6.2

cpe:2.3:a:langflow:langflow:1.6.2
Langflow » Langflow » Version: 1.6.3

cpe:2.3:a:langflow:langflow:1.6.3
Langflow » Langflow » Version: 1.6.4

cpe:2.3:a:langflow:langflow:1.6.4
Langflow » Langflow » Version: 1.6.5

cpe:2.3:a:langflow:langflow:1.6.5
Langflow » Langflow » Version: 1.6.6

cpe:2.3:a:langflow:langflow:1.6.6
Langflow » Langflow » Version: 1.6.7

cpe:2.3:a:langflow:langflow:1.6.7
Langflow » Langflow » Version: 1.6.8

cpe:2.3:a:langflow:langflow:1.6.8
Langflow » Langflow » Version: 1.6.9

cpe:2.3:a:langflow:langflow:1.6.9
Langflow » Langflow » Version: 1.7.0

cpe:2.3:a:langflow:langflow:1.7.0
Langflow » Langflow » Version: 1.7.1

cpe:2.3:a:langflow:langflow:1.7.1
Langflow » Langflow » Version: 1.7.2

cpe:2.3:a:langflow:langflow:1.7.2
Langflow » Langflow » Version: 1.7.3

cpe:2.3:a:langflow:langflow:1.7.3
Langflow » Langflow » Version: 1.8.0

cpe:2.3:a:langflow:langflow:1.8.0
Langflow » Langflow » Version: 1.8.1

cpe:2.3:a:langflow:langflow:1.8.1
Langflow » Langflow » Version: 1.8.2

cpe:2.3:a:langflow:langflow:1.8.2
Langflow » Langflow » Version: 1.8.3

cpe:2.3:a:langflow:langflow:1.8.3
Langflow » Langflow » Version: 1.8.4

cpe:2.3:a:langflow:langflow:1.8.4
Langflow » Langflow » Version: 1.9.0

cpe:2.3:a:langflow:langflow:1.9.0
Langflow » Langflow » Version: 1.9.1

cpe:2.3:a:langflow:langflow:1.9.1
Langflow » Langflow » Version: 1.9.2

cpe:2.3:a:langflow:langflow:1.9.2
Langflow » Langflow » Version: 1.9.3

cpe:2.3:a:langflow:langflow:1.9.3
Langflow » Langflow » Version: 1.9.4

cpe:2.3:a:langflow:langflow:1.9.4
Langflow » Langflow » Version: 1.9.6

cpe:2.3:a:langflow:langflow:1.9.6
Apple » Macos » Version: N/A

cpe:2.3:o:apple:macos:-
Linux » Linux Kernel » Version: N/A

cpe:2.3:o:linux:linux_kernel:-
Microsoft » Windows » Version: N/A

cpe:2.3:o:microsoft:windows:-

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Vulnerability Details CVE-2026-9103

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