NVD / CVE Program· CNA redhat

CVE-2024-6126: Cockpit: authenticated user can kill any process when enabling pam_env's user_readenv option

LowCVSS 3.2 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 12/100)

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: 0.27% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. A user must open a link or visit a page. No special conditions are required; it is repeatable.
Fixed version: cockpit (AlmaLinux:9) 323.1-1.el9_5; cockpit-bridge (AlmaLinux:9) 323.1-1.el9_5; cockpit-doc (AlmaLinux:9) 323.1-1.el9_5.

Low priority for now. Upgrade to cockpit (AlmaLinux:9) 323.1-1.el9_5; cockpit-bridge (AlmaLinux:9) 323.1-1.el9_5; cockpit-doc (AlmaLinux:9) 323.1-1.el9_5 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 flaw was found in the cockpit package. This flaw allows an authenticated user to kill any process when enabling the pam_env's user_readenv option, which leads to a denial of service (DoS) attack.

Denial of service

Published: Jul 3, 2024
Updated: Nov 7, 2026
EPSS: 0.2% · 20th percentile
CWE: CWE-400

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 12 / 40 · 3.2 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · redhat: 3.2; 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.

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.

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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.

—

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/cockpit-project/cockpit cockpit
- all versionsaffected
Red Hat Red Hat Enterprise Linux 10
- all versionsunknown
Red Hat Red Hat Enterprise Linux 7
- all versionsunknown
Red Hat Red Hat Enterprise Linux 8
- all versionsaffected
Red Hat Red Hat Enterprise Linux 9
- 0:323.1-1.el9_5 and laternot affected · rpm
- 0:323.1-1.el9_5 and laternot affected · rpm

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
AlmaLinux:9	cockpit	before 323.1-1.el9_5	323.1-1.el9_5
AlmaLinux:9	cockpit-bridge	before 323.1-1.el9_5	323.1-1.el9_5
AlmaLinux:9	cockpit-doc	before 323.1-1.el9_5	323.1-1.el9_5
AlmaLinux:9	cockpit-packagekit	before 323.1-1.el9_5	323.1-1.el9_5
AlmaLinux:9	cockpit-pcp	before 323.1-1.el9_5	323.1-1.el9_5
AlmaLinux:9	cockpit-storaged	before 323.1-1.el9_5	323.1-1.el9_5
AlmaLinux:9	cockpit-system	before 323.1-1.el9_5	323.1-1.el9_5
AlmaLinux:9	cockpit-ws	before 323.1-1.el9_5	323.1-1.el9_5
Debian:12	cockpit	before 287.1-0+deb12u3	287.1-0+deb12u3
Debian:13	cockpit	before 320-1	320-1
openSUSE:Leap 15.6	cockpit	before 320-bp156.2.6.3	320-bp156.2.6.3
openSUSE:Tumbleweed	cockpit	before 320-1.1	320-1.1
Red Hat:enterprise_linux:9::appstream	cockpit-debuginfo	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Red Hat:enterprise_linux:9::appstream	cockpit-debugsource	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Red Hat:enterprise_linux:9::appstream	cockpit-packagekit	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Red Hat:enterprise_linux:9::appstream	cockpit-pcp	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Red Hat:enterprise_linux:9::appstream	cockpit-storaged	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Red Hat:enterprise_linux:9::baseos	cockpit	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Red Hat:enterprise_linux:9::baseos	cockpit-bridge	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Red Hat:enterprise_linux:9::baseos	cockpit-doc	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Red Hat:enterprise_linux:9::baseos	cockpit-system	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Red Hat:enterprise_linux:9::baseos	cockpit-ws	before 0:323.1-1.el9_5	0:323.1-1.el9_5
Rocky Linux:9	cockpit	before 0:323.1-1.el9_5	0:323.1-1.el9_5
SUSE:Linux Enterprise Micro 5.1	cockpit	before 195.12-150300.10.6.1	195.12-150300.10.6.1

Same product

red hat: all records

Other highest-scoring records for the same primary product.

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29Monitor
CVE-2026-92925Redis: redis: out-of-bounds read via crafted cluster bus packets
28Monitor

Published before and after this one in the same product

← EarlierCVE-2024-1441Mar 11, 2024 · Libvirt: off-by-one error in udevlistinterfacesbystatus()
22Monitor
← EarlierCVE-2024-28835Mar 21, 2024 · Gnutls: potential crash during chain building/verification
20Monitor
Later →CVE-2024-6501Jul 9, 2024 · Networkmanager: denial of service
12Monitor

Remediation

Which version to upgrade to

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

Product / package	Fixed version	Source
almalinux:cockpit	323.1-1.el9_5 · AlmaLinux:9	Package registry (OSV)
almalinux:cockpit-bridge	323.1-1.el9_5 · AlmaLinux:9	Package registry (OSV)
almalinux:cockpit-doc	323.1-1.el9_5 · AlmaLinux:9	Package registry (OSV)
almalinux:cockpit-packagekit	323.1-1.el9_5 · AlmaLinux:9	Package registry (OSV)
almalinux:cockpit-pcp	323.1-1.el9_5 · AlmaLinux:9	Package registry (OSV)
almalinux:cockpit-storaged	323.1-1.el9_5 · AlmaLinux:9	Package registry (OSV)
almalinux:cockpit-system	323.1-1.el9_5 · AlmaLinux:9	Package registry (OSV)
almalinux:cockpit-ws	323.1-1.el9_5 · AlmaLinux:9	Package registry (OSV)
debian:cockpit	287.1-0+deb12u3 · Debian:12	Package registry (OSV)
opensuse:cockpit	320-bp156.2.6.3 · openSUSE:Leap 15.6	Package registry (OSV)
red hat:cockpit	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::baseos	Package registry (OSV)
red hat:cockpit-bridge	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::baseos	Package registry (OSV)
red hat:cockpit-debuginfo	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
red hat:cockpit-debugsource	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
red hat:cockpit-doc	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::baseos	Package registry (OSV)
red hat:cockpit-packagekit	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
red hat:cockpit-pcp	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
red hat:cockpit-storaged	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
red hat:cockpit-system	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::baseos	Package registry (OSV)
red hat:cockpit-ws	0:323.1-1.el9_5 · Red Hat:enterprise_linux:9::baseos	Package registry (OSV)
rocky linux:cockpit	0:323.1-1.el9_5 · Rocky Linux:9	Package registry (OSV)
suse:cockpit	298-150500.3.6.1 · SUSE:Linux Enterprise Micro 5.5	Package registry (OSV)
suse:cockpit	320-bp156.2.6.3 · SUSE:Package Hub 15 SP6	Package 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.

Credits

All researchers

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

Paolo Perego (OpenSUSE)

Variant candidates

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

CVE-2024-65016 days apartNetworkmanager: denial of service
12Monitor

Not on record for this CVE: EPSS history · patch commit or PR link · public bounty program.

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
A user must open a link or visit a page.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: low · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: Required
Scope: Changed
Confidentiality impact: None
Integrity impact: None
Availability impact: Low

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

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

nvd-secondary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1function expand(node) {
2  return node.children.map(expand);
3}

Fixed

1const MAX_DEPTH = 32;
2function expand(node, depth = 0) {
3  if (depth > MAX_DEPTH) throw new Error("too deep");
4  return node.children.map((c) => expand(c, depth + 1));
5}

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

Endpoint Denial of ServiceT1499

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:48 PM UTC

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

References

access.redhat.com/errata/RHSA-2024:9325

Show all references (2 more)

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

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