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CVE-2025-64762

29
FAUCET Score

CVE-2025-64762 is a critical vulnerability affecting AuthKit for Next.js versions 2.11.0 and below, where authenticated responses lack anti-caching headers. This flaw can lead to session tokens being cached by CDNs and subsequently exposed to unauthorized users, though Next.js applications on Vercel are generally unaffected unless CDN caching is manually enabled. With a CVSS score of 9.1 (CRITICAL), the vulnerability is easily exploitable over the network with high impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or inclusion in the KEV catalog, but it has garnered some community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.11.1CPE matchmatch criteria
cpe:2.3:a:workos:authkit-nextjs:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 4.0

8.0HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
UNREPORTED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 7th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media 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 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: @workos-inc/authkit-nextjsFixed in: 2.11.1

Vendor Advisories (1)

npmGHSA-p8pf-44ff-93gfhigh

authkit-nextjs may let session cookies be cached in CDNs

Nov 20, 2025

References

github.com / workos/authkit-nextjs/commit/94cf438124993abb0e7c19dac64c3cb5724a15ea
Patch
github.com / workos/authkit-nextjs/releases/tag/v2.11.1
Release Notes
github.com / workos/authkit-nextjs/security/advisories/GHSA-p8pf-44ff-93gf
PatchThird Party Advisory