CVE-2026-41213Disclosure(node-oauth / node-oauth\/oauth2-server)

LOWCVSS 5.9 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

@node-oauth/oauth2-server is a module for implementing an OAuth2 server in Node.js. The token exchange path accepts RFC7636-invalid code_verifier values (including one-character strings) for S256 PKCE flows. Because short/weak verifiers are accepted and failed verifier attempts do not consume the authorization code, an attacker who intercepts an authorization code can brute-force code_verifier guesses online until token issuance succeeds.

node-oauth CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Exploit / PoC references

Weakness type (CWE)

CWE-307CWE-1289

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

node-oauth\/oauth2-server

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Affected systems

Vendors

node-oauth

Products

node-oauth\/oauth2-server

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://www.cve.org/CVERecord?id=CVE-2026-41213

Full discourse1 post

CVE@CVEnew171d
Disclosure
CVE-2026-41213 @node-oauth/oauth2-server is a module for implementing an OAuth2 server in Node.js. The token exchange path accepts RFC7636-invalid code_verifier values (including on… https://www.cve.org/CVERecord?id=CVE-2026-41213
Post summary
CVE-2026-41213 reveals that node‑oauth/oauth2-server accepts RFC7636-invalid code_verifier values during token exchange, indicating a flaw in PKCE enforcement, but no PoC, exploit, or patch information is presented.
0000092
57.2K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	node-oauth	node-oauth\/oauth2-server	-	node.js	-

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