CVE-2026-34931

Name: CVE-2026-34931
Creator: NVD / NIST
Published: 2026-04-02T20:16:28.83+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.5/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2026-34931 is a high-severity vulnerability rated 8.5/10 on the CVSS scale. hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, there is an open redirect vulnerability that leads to token exfiltration. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, there is an open redirect vulnerability that leads to token exfiltration. With these tokens, the attacker can sign in as the victim to takeover their account. This issue has been patched in version 2026.3.0.

Metrics

CVSS 3.1

9.6/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS 4.0

8.5/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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

EPSS Probability

0.37%

29.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-601

Affected Software

Vendor	Product	Versions
Hoppscotch	Hoppscotch	< 2026.3.0

References

https://github.com/hoppscotch/hoppscotch/releases/tag/2026.3.0Release Notes
https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-7fg7-wx5q-6m3vExploit, Vendor Advisory

Timeline

Published: Apr 2, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-34931?

How severe is CVE-2026-34931?

CVE-2026-34931 has a CVSS score of 8.5/10 (HIGH severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2026-34931?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34931?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST