CVE-2022-28229

HIGHNVD 7.57.5—

7.5

The hash functionality in userver before 42059b6319661583b3080cab9b595d4f8ac48128 allows attackers to cause a denial of service via crafted HTTP request, involving collisions.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 76.2%
KEV: Not listed

Published

December 23, 2022

Last Modified

April 15, 2025

References (2)

browser-security@yandex-teamhttps://userver.tech/df/d3a/md_en_userver_security_changelog.html
af854a3a-2127-422b-91ae-364da2661108https://userver.tech/df/d3a/md_en_userver_security_changelog.html

Weakness Classification(1)

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

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:09 UTCepss_batch
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2026-06-04 13:11 UTCepss_batch
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2026-06-01 13:50 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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2026-05-31 00:15 UTCepss_batch
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2026-05-29 13:43 UTCepss_batch
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2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch

Frequently asked(5)

What is CVE-2022-28229?

CVE-2022-28229 is a high vulnerability published on December 23, 2022. The hash functionality in userver before 42059b6319661583b3080cab9b595d4f8ac48128 allows attackers to cause a denial of service via crafted HTTP request, involving collisions.

When was CVE-2022-28229 disclosed?

CVE-2022-28229 was first published in the National Vulnerability Database on December 23, 2022, with the most recent update on April 15, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-28229 actively exploited?

CVE-2022-28229 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-28229?

CVE-2022-28229 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2022-28229?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-28229, 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.

Dependency Blast Radius

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CVE-2022-28229

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-28229?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)