CVE-2026-42356

LOWPre-NVD 3.73.7—
EchelonGraph scoreHIGH confidence

Score 3.7 from GitHub Security Advisory (severity: LOW) published 2026-10-01. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 3.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — Patch released this week
3.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 3.7Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Deployment of wrong handler vulnerability in Apache HTTP Server allows the target of some internal redirects from CGI programs to also be treated as CGI and executed. The target must already be in a directory enabled for CGI and have no other extension understood by mod_mime.

This issue affects Apache HTTP Server: from 2.4.60 through 2.4.68.

CVSS v3
3.7
EG Score
3.7LOWhigh confidence
EG Risk
17
EG Risk 17/100CISA 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 computed
Severity37% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
38th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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

October 1, 2026

Last Modified

October 2, 2026

References (2)

Vendor Advisories for CVE-2026-42356(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 / EcosystemFix (by version range) / PatchReleasedSource
redhathttpd-main-2.4.69-1.hum12026-10-02redhat

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

(7 across 7 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.69-r0: fixed in 2.4.69-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.69-r0: fixed in 2.4.69-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.69-r0: fixed in 2.4.69-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.69-r0: fixed in 2.4.69-r0
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
apache22.4.57-2 ... 2.4.69-1 (58 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
apache22.4.65-2 ... 2.4.69-1 (31 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
apache22.4.65-2 ... 2.4.68-2 (30 versions)
  • every version up to 2.4.69-1: fixed in 2.4.69-1
—

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 14× in last 7d / 14× 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.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-03 14:25 UTCEPSS rescore
  3. 2026-10-02 21:16 UTCEG score recompute
  4. 2026-10-02 21:16 UTCVendor advisory
  5. 2026-10-02 21:16 UTCGHSA enrichment
  6. 2026-10-01 21:21 UTCGHSA enrichment
  7. 2026-10-01 20:33 UTCGHSA enrichment
  8. 2026-10-01 20:29 UTCEG score recompute
  9. 2026-10-01 20:29 UTCGHSA enrichment
  10. 2026-10-01 16:25 UTCEG score recompute▲ 3.70
  11. 2026-10-01 16:25 UTCMITRE cvelistV5CVSS v3 → 3.7 · severity → LOW
  12. 2026-10-01 16:24 UTCNVD update
  13. 2026-10-01 15:56 UTCEG score recompute
  14. 2026-10-01 15:55 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same vendor + same CWE)

Same CWE

1 shown

CWE-430

Frequently asked(5)

What is CVE-2026-42356?
CVE-2026-42356 is a low vulnerability published on October 1, 2026. Deployment of wrong handler vulnerability in Apache HTTP Server allows the target of some internal redirects from CGI programs to also be treated as CGI and executed. The target must already be in a directory enabled for CGI and have no other extension understood by mod_mime. This issue affects…
When was CVE-2026-42356 disclosed?
CVE-2026-42356 was first published on October 1, 2026, with the most recent update on October 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42356 actively exploited?
CVE-2026-42356 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-42356?
CVE-2026-42356 has a CVSS v3.1 base score of 3.7 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-42356?
A fix for CVE-2026-42356 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-42356 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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