CVE-2026-82957

hyperledger-firefly Webhook Subscription webhooks.go ValidateOptions server-side request forgery

MEDIUM 5.5EPSS 0.5%

A vulnerability was found in hyperledger-firefly firefly up to 1.4.0. The impacted element is the function ValidateOptions of the file internal/events/webhooks/webhooks.go of the component Webhook Subscription. Performing a manipulation of the argument url results in server-side request forgery. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected: hyperledger-firefly · firefly
CVSS v4.0 VULDB: 5.5 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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
CVSS v3.1 VULDB: 7.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v2.0 VULDB: 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS: 0.51% chance of exploitation in the next 30 days, 43rd percentile
Published: 2026-08-31
Updated: 2026-09-01

Proof-of-concept exploits (1)

hakaioffsec/CVE-2026-829570★ · 2026-10-13

CVE-2026-82957

Proof-of-concept exploits (1)

References

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