CVE-2026-34931 identifies a high-severity open redirect vulnerability (CVSS 8.5) in hoppscotch, an open-source API development ecosystem, affecting versions prior to 2026.3.0. This flaw, stemming from improper redirect_uri validation, allows for token exfiltration with low attack complexity, requiring user interaction. Successful exploitation enables an attacker to sign in as the victim and take over their account. Currently, there is no evidence of active exploitation or public exploit code, and community discussion remains minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2026.3.0CPE matchmatch criteria | cpe:2.3:a:hoppscotch:hoppscotch:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.