A regular expression based DoS vulnerability in Action Dispatch <6.0.6.1,< 6.1.7.1, and <7.0.4.1. Specially crafted cookies, in combination with a specially crafted X_FORWARDED_HOST header can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability All users running an affected release should either upgrade or use one of the workarounds immediately.
CVE-2023-22792
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.7% (76th percentile of EPSS-scored CVEs). 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).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 49EG Risk 49/100CISA SSVC
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 computedSeverity75% × 45%Exploitation2% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 1.7%
- EPSS %ILE
- 76th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
February 9, 2023
Last Modified
March 24, 2025
References (6)
- support@hackeronehttps://discuss.rubyonrails.org/t/cve-2023-22792-possible-redos-based-dos-vulnerability-in-action-dispatch/82115
- support@hackeronehttps://security.netapp.com/advisory/ntap-20240202-0007/
- support@hackeronehttps://www.debian.org/security/2023/dsa-5372
- af854a3a-2127-422b-91ae-364da2661108https://discuss.rubyonrails.org/t/cve-2023-22792-possible-redos-based-dos-vulnerability-in-action-dispatch/82115
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240202-0007/
- af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5372
Vendor Advisories for CVE-2023-22792(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(1)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| redhat | rubygem-actionpack-0:6.1.7.3-1.el8sat | 2023-11-08 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(5 across 5 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| rails | 2:6.0.3.7+dfsg-2 |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| rails | — |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| rails | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| rails | — |
| — |
RubyGems(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| actionpack | 7.0.0 ... 7.0.4 (10 versions) |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 27× 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 188 total refreshes for this CVE.
- 2026-10-09 20:05 UTCEPSS rescore
- 2026-10-08 17:05 UTCEPSS rescore
- 2026-10-07 23:45 UTCEPSS rescore
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- 2026-09-30 16:17 UTCEG score recompute
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- 2026-09-23 20:41 UTCOSV refresh
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- 2026-09-12 14:58 UTCEPSS rescore
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- 2026-09-04 15:54 UTCOSV refresh
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- 2026-08-18 03:04 UTCOSV refresh
- 2026-08-17 13:44 UTCEPSS rescore
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- 2026-08-04 15:07 UTCEPSS rescore
- 2026-08-04 10:35 UTCEPSS rescore
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- 2026-08-02 21:57 UTCOSV refresh
- 2026-08-02 02:24 UTCEPSS rescore
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- 2026-07-30 16:26 UTCEPSS rescore
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- 2026-07-28 15:34 UTCEPSS rescore
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- 2026-07-23 14:16 UTCEPSS rescore
- 2026-07-23 02:19 UTCEG score recompute
- 2026-07-22 23:06 UTCEG score recompute
- 2026-07-22 14:06 UTCEPSS rescore
- 2026-07-21 15:23 UTCEPSS rescore
- 2026-07-20 17:05 UTCEPSS rescore
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- 2026-07-16 06:49 UTCOSV refresh
- 2026-07-15 16:56 UTCEPSS rescore
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- 2026-07-13 22:28 UTCEPSS rescore
- 2026-07-12 05:45 UTCEPSS rescore
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownRubyGems:actionpack
- CVE-2021-22881NVD 6.1EG 9.0EPSS p100CRITICAL
- CVE-2016-0752NVD 7.5EG 9.0 KEVEPSS p100CRITICAL
- CVE-2016-2098NVD 7.3EG 8.9EPSS p100HIGH
- CVE-2020-8264NVD 6.1EG 8.1EPSS p99HIGH
- CVE-2023-22795EG 7.5HIGH
- CVE-2021-22904EG 7.5EPSS p92HIGH
- CVE-2021-22902EG 7.5HIGH
- CVE-2021-22885EG 7.5EPSS p90HIGH
- CVE-2020-8164EG 7.5EPSS p92HIGH
- CVE-2016-0751EG 7.5EPSS p95HIGH
Same vendor
10 shownredhat:RHSA-2023:6818
- CVE-2023-40267EG 9.8CRITICAL
- CVE-2023-31047EG 9.8CRITICAL
- CVE-2022-2068NVD 7.3EG 9.8EPSS p100CRITICAL
- CVE-2022-1292NVD 7.3EG 9.8EPSS p100CRITICAL
- CVE-2022-3874NVD 8.0EG 9.1CRITICAL
- CVE-2023-0118EG 9.1CRITICAL
- CVE-2023-44487NVD 7.5EG 9.0 KEVEPSS p100CRITICAL
- CVE-2023-22794EG 8.8HIGH
- CVE-2022-0759EG 8.1HIGH
- CVE-2022-47318EG 8.0HIGH
Frequently asked(5)
What is CVE-2023-22792?
When was CVE-2023-22792 disclosed?
Is CVE-2023-22792 actively exploited?
What is the CVSS score of CVE-2023-22792?
How do I remediate CVE-2023-22792?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-22792
Is Your Infrastructure Affected by CVE-2023-22792?
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