CVE-2026-55255
Act now ● On CISA KEV — actively exploited
Actively exploited — on the CISA KEV list.
CVSS base
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EPSS — probability of exploitation (30 days)
0.9%
57.7th percentile
CISA KEV
Listed
Added 2026-07-07 · patch by 2026-07-10
Weakness / dates
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Published — · modified —
Timeline
- 2026-07-07 — Added to CISA KEV (actively exploited)
- 2026-07-10 — CISA patch-by deadline
Description
Langflow contains an authorization bypass through user-controlled key vulnerability which allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request.