CVE-2026-6597 json
langflow-ai langflow Flow Using API core.py has_api_terms credentials storage
published 6mo ago modified 3mo ago also GHSA-5jjf-wcvf-923w , PYSEC-2026-2565 , EUVD-2026-23746
- cvss
- 2.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
A weakness has been identified in langflow-ai langflow up to 1.8.3. Impacted is the function remove_api_keys/has_api_terms of the file src/backend/base/langflow/api/utils/core.py of the component Flow Using API. This manipulation causes unprotected storage of credentials. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6mo ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- gist.github.com https://gist.github.com/chenhouser2025/b93261c6e651f14800a4f2e4365f357b referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P |
| CNA | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R |
| CNA | 3.0 | 2.7 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R |
| CNA | 2.0 | 3.3 | AV:N/AC:L/Au:M/C:P/I:N/A:N/E:POC/RL:ND/RC:UR |
| CNA | 4.0 | 2.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
| CNA | 2.0 | 3.3 | AV:N/AC:L/Au:M/C:P/I:N/A:N |
| OSV | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | langflow | <=1.8.3 |
no fix listed |
Affected products
- langflow-ai langflow
Classification
References
-
gist.github.com
/chenhouser2025/b93261c6e651f14800a4f2e4365f357b
exploit, web
-
vuldb.com
/vuln/358232
vdb-entry, technical-description, web
-
vuldb.com
/vuln/358232/cti
signature, permissions-required, web
-
vuldb.com
/submit/791920
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-6597
advisory
-
github.com
/langflow-ai/langflow
package
-
pypi.org
/project/langflow
package
-
github.com
/advisories/GHSA-5jjf-wcvf-923w
advisory
Sources
- CVE List CVE-2026-6597
- GitHub Advisory GHSA-5jjf-wcvf-923w
- NVD CVE-2026-6597
- OSV PYSEC-2026-2565
Fencer Intel 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.