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NVD / CVE Program· CNA apache

CVE-2024-38476: Apache HTTP Server may use exploitable/malicious backend application output to run local handlers via internal redirect

Noroxi assessment

Priority: Plan (action score 51/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 41.6% (FIRST EPSS); higher than 98.6% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: Apache Software Foundation Apache HTTP Server 2.4.60.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Add it to your regular patch cycle. Upgrade to Apache Software Foundation Apache HTTP Server 2.4.60 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure, SSRF or local script execution via backend applications whose response headers are malicious or exploitable. Users are recommended to upgrade to version 2.4.60, which fixes this issue.

CriticalCVSS 9.8 · v3.1—Proof of concept Fix available
Published
Jul 1, 2024
Updated
Jun 17, 2026
EPSS
41.6% · 98th percentile

Report tools

JSON

Action score

51

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
12 / 30 · 41.6%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-38476

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
apachehttp server
netappclustered data ontap

Using http server? Add it to your stack and be the first to know about CVEs like this one. (Apache HTTP)

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When you'll hear from us

  • when a new CVE affecting this product is published
  • when a record in your stack enters KEV or gets exploit code

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Is Apache HTTP Server on your server exposed to the internet?

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apache http server2.4.0 and later · before 2.4.60

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

  • Apache Software Foundation Apache HTTP Server

    • 2.4.0 and later · up to and including 2.4.59affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8httpdbefore 2.4.37-65.module_el8.10.0+3874+c2064c23.22.4.37-65.module_el8.10.0+3874+c2064c23.2
AlmaLinux:8httpd-develbefore 2.4.37-65.module_el8.10.0+3874+c2064c23.22.4.37-65.module_el8.10.0+3874+c2064c23.2
AlmaLinux:8httpd-filesystembefore 2.4.37-65.module_el8.10.0+3874+c2064c23.22.4.37-65.module_el8.10.0+3874+c2064c23.2
AlmaLinux:8httpd-manualbefore 2.4.37-65.module_el8.10.0+3874+c2064c23.22.4.37-65.module_el8.10.0+3874+c2064c23.2
AlmaLinux:8httpd-toolsbefore 2.4.37-65.module_el8.10.0+3874+c2064c23.22.4.37-65.module_el8.10.0+3874+c2064c23.2
AlmaLinux:8mod_http2before 1.15.7-10.module_el8.10.0+3832+564e76531.15.7-10.module_el8.10.0+3832+564e7653
AlmaLinux:8mod_http2before 1.15.7-10.module_el8.10.0+3872+9b8ab21e1.15.7-10.module_el8.10.0+3872+9b8ab21e
AlmaLinux:8mod_ldapbefore 2.4.37-65.module_el8.10.0+3874+c2064c23.22.4.37-65.module_el8.10.0+3874+c2064c23.2
AlmaLinux:8mod_mdbefore 1:2.0.8-8.module_el8.6.0+3031+fb177b091:2.0.8-8.module_el8.6.0+3031+fb177b09
AlmaLinux:8mod_mdbefore 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa
AlmaLinux:8mod_proxy_htmlbefore 1:2.4.37-65.module_el8.10.0+3874+c2064c23.21:2.4.37-65.module_el8.10.0+3874+c2064c23.2
AlmaLinux:8mod_sessionbefore 2.4.37-65.module_el8.10.0+3874+c2064c23.22.4.37-65.module_el8.10.0+3874+c2064c23.2
AlmaLinux:8mod_sslbefore 1:2.4.37-65.module_el8.10.0+3874+c2064c23.21:2.4.37-65.module_el8.10.0+3874+c2064c23.2
AlmaLinux:9httpdbefore 2.4.57-11.el9_4.12.4.57-11.el9_4.1
AlmaLinux:9httpd-corebefore 2.4.57-11.el9_4.12.4.57-11.el9_4.1
AlmaLinux:9httpd-develbefore 2.4.57-11.el9_4.12.4.57-11.el9_4.1
AlmaLinux:9httpd-filesystembefore 2.4.57-11.el9_4.12.4.57-11.el9_4.1
AlmaLinux:9httpd-manualbefore 2.4.57-11.el9_4.12.4.57-11.el9_4.1
AlmaLinux:9httpd-toolsbefore 2.4.57-11.el9_4.12.4.57-11.el9_4.1
AlmaLinux:9mod_ldapbefore 2.4.57-11.el9_4.12.4.57-11.el9_4.1
AlmaLinux:9mod_luabefore 2.4.57-11.el9_4.12.4.57-11.el9_4.1
AlmaLinux:9mod_proxy_htmlbefore 1:2.4.57-11.el9_4.11:2.4.57-11.el9_4.1
AlmaLinux:9mod_sessionbefore 2.4.57-11.el9_4.12.4.57-11.el9_4.1
AlmaLinux:9mod_sslbefore 1:2.4.57-11.el9_4.11:2.4.57-11.el9_4.1

+96

Same product

apache: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-42013Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)KEV
    99Now
  • CVE-2021-41773Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49KEV
    99Now
  • CVE-2024-38475Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path.KEV
    96Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-38473Jul 1, 2024 · Apache HTTP Server proxy encoding problem
    40Plan
  • ← EarlierCVE-2024-38474Jul 1, 2024 · Apache HTTP Server weakness with encoded question marks in backreferences
    40Plan
  • Later →CVE-2024-38477Jul 1, 2024 · Apache HTTP Server: Crash resulting in Denial of Service in mod_proxy via a malicious request
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Apache Software Foundation Apache HTTP Server2.4.60 · descriptionVendor (CNA)
almalinux:httpd2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:httpd-core2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:httpd-devel2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:httpd-filesystem2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:httpd-manual2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:httpd-tools2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:mod_http21.15.7-10.module_el8.10.0+3832+564e7653 · AlmaLinux:8Package registry (OSV)
almalinux:mod_ldap2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:mod_lua2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:mod_proxy_html1:2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:mod_session2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
almalinux:mod_ssl1:2.4.57-11.el9_4.1 · AlmaLinux:9Package registry (OSV)
alpine:apache22.4.60-r0 · Alpine:v3.17Package registry (OSV)
debian:apache22.4.61-1~deb12u1 · Debian:12Package registry (OSV)
opensuse:apache22.4.58-150600.5.18.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:apache2-devel2.4.58-150600.5.18.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:apache2-event2.4.58-150600.5.18.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:apache2-manual2.4.58-150600.5.18.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:apache2-prefork2.4.58-150600.5.18.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:apache2-utils2.4.58-150600.5.18.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:apache2-worker2.4.58-150600.5.18.1 · openSUSE:Leap 15.6Package registry (OSV)
red hat:httpd0:2.4.57-11.el9_4.1 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:httpd-core0:2.4.57-11.el9_4.1 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:httpd-core-debuginfo0:2.4.57-11.el9_4.1 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:httpd-debuginfo0:2.4.57-11.el9_4.1 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:httpd-debugsource0:2.4.57-11.el9_4.1 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:httpd-devel0:2.4.57-11.el9_4.1 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:httpd-filesystem0:2.4.57-11.el9_4.1 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:httpd-manual0:2.4.57-11.el9_4.1 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)

+15

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02026-01-21

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+568 d
  3. TodayNov 9, 2026+861 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-829 · Inclusion of Functionality from Untrusted Control Sphere

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records