CVE-2022-31013

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 1.4%, top 31% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Chat Server is the chat server for Vartalap, an open-source messaging application. Versions 2.3.2 until 2.6.0 suffer from a bug in validating the access token, resulting in authentication bypass. The function this.authProvider.verifyAccessKey is an async function, as the code is not using await to wait for the verification result. Every time the function responds back with success, along with an unhandled exception if the token is invalid. A patch is available in version 2.6.0.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
70%
KEV
Not listed

Published

May 31, 2022

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Jul 21, 2026
Patch available. Sources: github_release, github.
github Patch Available

Authentication bypass · Advisory · ramank775/chat-server · GitHub

https://github.com/ramank775/chat-server/security/advisories/GHSA-xx4j-qqpp-v277
github_release Patch Available

v2.6.0

Patch available: ramank775/chat-server v2.6.0

https://github.com/ramank775/chat-server/releases/tag/v2.6.0
generic

Authentication security vulnerability · ramank775 chat-server · Discussion #78 · GitHub

https://github.com/ramank775/chat-server/discussions/78

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 117 total refreshes for this CVE.

  1. 2026-07-26 14:52 UTCEPSS rescore
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  51. 2026-06-12 00:57 UTCOSV refresh
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  74. 2026-05-31 22:29 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2022-31013?
CVE-2022-31013 is a critical vulnerability published on May 31, 2022. Chat Server is the chat server for Vartalap, an open-source messaging application. Versions 2.3.2 until 2.6.0 suffer from a bug in validating the access token, resulting in authentication bypass. The function this.authProvider.verifyAccessKey is an async function, as the code is not using await to…
When was CVE-2022-31013 disclosed?
CVE-2022-31013 was first published in the National Vulnerability Database on May 31, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-31013 actively exploited?
CVE-2022-31013 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 30.3% of all scored CVEs.
What is the CVSS score of CVE-2022-31013?
CVE-2022-31013 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2022-31013?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-31013, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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