Skip to content
Noroxi
NVD / CVE Program· CNA redhat

CVE-2024-10306: Mod_proxy_cluster: mod_proxy_cluster unauthorized mcmp requests

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.38% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: github.com/modcluster/mod_proxy_cluster mod_proxy_cluster 1.3.21.Final.

Low priority for now. Upgrade to github.com/modcluster/mod_proxy_cluster mod_proxy_cluster 1.3.21.Final 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

A vulnerability was found in mod_proxy_cluster. The issue is that the <Directory> directive should be replaced by the <Location> directive as the former does not restrict IP/host access as `Require ip IP_ADDRESS` would suggest. This means that anyone with access to the host might send MCMP requests that may result in adding/removing/updating nodes for the balancing. However, this host should not be accessible to the public network as it does not serve the general traffic.

MediumCVSS 5.4 · v3.1—No exploit Fix available
Published
Apr 23, 2025
Updated
Oct 21, 2026
EPSS
0.3% · 32th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
5.4
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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

Follow CVE-2024-10306

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for red hat records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

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.

—

Versions reported by the vendor

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

  • github.com/modcluster/mod_proxy_cluster mod_proxy_cluster

    • 1.3.17 and later · before 1.3.21.Finalaffected · semver

  • Red Hat Red Hat Enterprise Linux 10

    • 0:1.3.21-1.el10 and laternot affected · rpm
    • 0:1.3.22-1.el10_0.2 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 9

    • 0:1.3.22-1.el9_5.2 and laternot affected · rpm
    • 0:1.3.22-1.el9_6.1 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support

    • 0:1.3.22-1.el9_4.1 and laternot affected · rpm

  • Red Hat Red Hat JBoss Core Services

    • all versionsaffected

  • Red Hat Red Hat JBoss Core Services 2.4.62

    • all versionsunknown

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:10mod_proxy_clusterbefore 1.3.22-1.el10_0.21.3.22-1.el10_0.2
AlmaLinux:9mod_proxy_clusterbefore 1.3.22-1.el9_6.11.3.22-1.el9_6.1
Red Hat:enterprise_linux:10.0mod_proxy_clusterbefore 0:1.3.21-1.el100:1.3.21-1.el10
Red Hat:enterprise_linux:10.0mod_proxy_clusterbefore 0:1.3.22-1.el10_0.20:1.3.22-1.el10_0.2
Red Hat:enterprise_linux:10.0mod_proxy_cluster-debuginfobefore 0:1.3.21-1.el100:1.3.21-1.el10
Red Hat:enterprise_linux:10.0mod_proxy_cluster-debuginfobefore 0:1.3.22-1.el10_0.20:1.3.22-1.el10_0.2
Red Hat:enterprise_linux:10.0mod_proxy_cluster-debugsourcebefore 0:1.3.21-1.el100:1.3.21-1.el10
Red Hat:enterprise_linux:10.0mod_proxy_cluster-debugsourcebefore 0:1.3.22-1.el10_0.20:1.3.22-1.el10_0.2
Red Hat:enterprise_linux:9::appstreammod_proxy_clusterbefore 0:1.3.22-1.el9_5.20:1.3.22-1.el9_5.2
Red Hat:enterprise_linux:9::appstreammod_proxy_clusterbefore 0:1.3.22-1.el9_6.10:1.3.22-1.el9_6.1
Red Hat:enterprise_linux:9::appstreammod_proxy_cluster-debuginfobefore 0:1.3.22-1.el9_5.20:1.3.22-1.el9_5.2
Red Hat:enterprise_linux:9::appstreammod_proxy_cluster-debuginfobefore 0:1.3.22-1.el9_6.10:1.3.22-1.el9_6.1
Red Hat:enterprise_linux:9::appstreammod_proxy_cluster-debugsourcebefore 0:1.3.22-1.el9_5.20:1.3.22-1.el9_5.2
Red Hat:enterprise_linux:9::appstreammod_proxy_cluster-debugsourcebefore 0:1.3.22-1.el9_6.10:1.3.22-1.el9_6.1
Red Hat:rhel_eus:9.4::appstreammod_proxy_clusterbefore 0:1.3.22-1.el9_4.10:1.3.22-1.el9_4.1
Red Hat:rhel_eus:9.4::appstreammod_proxy_cluster-debuginfobefore 0:1.3.22-1.el9_4.10:1.3.22-1.el9_4.1
Red Hat:rhel_eus:9.4::appstreammod_proxy_cluster-debugsourcebefore 0:1.3.22-1.el9_4.10:1.3.22-1.el9_4.1
Rocky Linux:10mod_proxy_clusterbefore 0:1.3.22-1.el10_0.20:1.3.22-1.el10_0.2
Rocky Linux:9mod_proxy_clusterbefore 0:1.3.22-1.el9_6.10:1.3.22-1.el9_6.1

Same product

red hat: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-10230Samba: command injection in wins server hook script
    52Plan
  • CVE-2026-4631Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
    44Plan
  • CVE-2026-76578Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-32914Apr 14, 2025 · Libsoup: oob read on libsoup through function "soup_multipart_new_from_message" in soup-multipart.c leads to crash or exit of process
    29Monitor
  • ← EarlierCVE-2025-3576Apr 15, 2025 · Krb5: kerberos rc4-hmac-md5 checksum vulnerability enabling message spoofing via md5 collisions
    23Monitor
  • Later →CVE-2025-46421Apr 24, 2025 · Libsoup: information disclosure may leads libsoup client sends authorization header to a different host when being redirected by a server
    27Monitor

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
github.com/modcluster/mod_proxy_cluster mod_proxy_cluster1.3.21.FinalVendor (CNA)
almalinux:mod_proxy_cluster1.3.22-1.el9_6.1 · AlmaLinux:9Package registry (OSV)
red hat:mod_proxy_cluster0:1.3.22-1.el9_5.2 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:mod_proxy_cluster-debuginfo0:1.3.22-1.el9_5.2 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:mod_proxy_cluster-debugsource0:1.3.22-1.el9_5.2 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
rocky linux:mod_proxy_cluster0:1.3.22-1.el9_6.1 · Rocky Linux:9Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

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.

No dated events beyond publication.

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.

Credits

All researchers

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

No credits in the CNA record.

Variant candidates

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

  • CVE-2026-7867470 days apartUdisks2: udisks2: local privilege escalation via as-user option spoofing
    31Monitor
  • CVE-2026-19685488 days apartNetworkmanager: networkmanager: 802-1x ca-path and phase2-ca-path bypass private_user restriction, allowing wpa-enterprise server validation bypass (incomplete
    28Monitor

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).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-863 · Incorrect Authorization

CVSS vector

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

nvd-secondary

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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

References

Show all references (8 more)

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

All records