CVE-2026-34834 details a high-severity authentication bypass vulnerability affecting Bulwark Webmail versions prior to 1.4.10. This flaw allows unauthenticated attackers to bypass security checks by providing arbitrary headers, enabling unauthorized access and modification of user settings via the /api/settings endpoint. Rated with a CVSSv4 score of 8.7 (High), the vulnerability has a network attack vector and low attack complexity, requiring no user interaction or prior authentication, with a significant impact on integrity. There is currently no evidence of active exploitation, nor is public exploit code available on common platforms. Community discussion regarding this CVE is minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.4.10CPE matchmatch criteria | cpe:2.3:a:bulwarkmail:webmail:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/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, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.