CVE-2026-127088: Bubka 2FAuth

2FAuth before 9.0.1 Password Reset Poisoning via Host Header

CVSS 8.6 HighEPSS 0.0057 · 47th percentile

Published by the CVE Program (CNA: VulnCheck) at 13 Nov 2026, 09:34 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Bubka	2FAuth pkg:github/Bubka/2FAuth	affected before 9.0.1 semver Other versions: unaffected

Identifiers

CVE-2026-127088

CNA

VulnCheck

Weakness (CWE)

CWE-640

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.6	High	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
8.1	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0057, the 47th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

13 Nov 2026, 09:34 UTC Confirmed by the CVE List
13 Nov 2026, 09:43 UTC First seen by agentprime
13 Nov 2026, 10:18 UTC Confirmed by NVD

Sources

References from the CNA

github.com/Bubka/2FAuth/security/advisories/GHSA-v9qw-r94g-95qv vendor-advisory
github.com/Bubka/2FAuth/commit/35ce085b69f9f5044dfb94017c3f27c1dc2668f3 patch
github.com/Bubka/2FAuth/releases/tag/v9.0.1 release-notes
github.com/Bubka/2FAuth/blob/v9.0.0/app/Http/Kernel.php#L47 technical-description
github.com/Bubka/2FAuth/blob/v9.0.0/app/Notifications/WebauthnRecoveryNotification.php#L62-L64 technical-description
www.vulncheck.com/advisories/2fauth-before-9.0.1-password-reset-poisoning-via-host-header third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.