How severe is CVE-2024-29904?

CVE-2024-29904 has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2024-29904?

CVE-2024-29904 affects the following packages: codeigniter4/framework (Packagist). Ecosystems affected: Packagist.

How do I fix CVE-2024-29904?

Update codeigniter4/framework to 4.4.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-29904 is resolved across your whole dependency graph.

How do I detect CVE-2024-29904 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for codeigniter4/framework, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2024-29904 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is CVE-2024-29904 actively exploited in the wild?

No public exploit code has been indexed for CVE-2024-29904 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2024-29904?

CVE-2024-29904 has an EPSS (Exploit Prediction Scoring System) score of 0.8%, placing it in the 55th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2024-29904?

CVE-2024-29904 is classified as CWE-835 (CWE-835), CWE-674 (CWE-674). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2024-29904 published, and has it been updated?

CVE-2024-29904 was published on March 29, 2024 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘

🐘 Packagist

Not in CISA KEV

HIGH severity

CVE-2024-29904 — framework

HIGHFix: codeigniter4/CodeIgniter4@fa851ac

CVE-2024-29904 is a high-severity (CVSS 7.5) CWE-835 vulnerability in codeigniter4/framework. A fix is available for codeigniter4/framework — see the affected versions and patch details below.

CodeIgniter4 Language class DoS Vulnerability

Also known asGHSA-39fp-mqmm-gxj6

Published

Mar 29, 2024

Updated

Aug 12, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 13, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-29904.

EPSS Exploitation Probability

via FIRST.org ↗

0.8%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs55th percentile — riskier than 55% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2024-29904 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 386,684 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

🐘codeigniter4/framework

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Impact

A vulnerability was found in the Language class that allowed DoS attacks. This vulnerability can be exploited by an attacker to consume a large amount of memory on the server.

Patches

Upgrade to v4.4.7 or later. See upgrading guide.

Workarounds

Disabling Auto Routing prevents a known attack vector in the framework.
Do not pass invalid values to the lang() function or Language class.

References

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`codeigniter4/framework`	all versions	4.4.7`composer require codeigniter4/framework:^4.4.7`

Affected Products

1 product · 1 configurations

Application

codeignitercodeigniter

< 4.4.7

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for codeigniter4/framework, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update codeigniter4/framework to 4.4.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-29904 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

### Impact A vulnerability was found in the Language class that allowed DoS attacks. This vulnerability can be exploited by an attacker to consume a large amount of memory on the server. ### Patches Upgrade to v4.4.7 or later. See [upgrading guide](https://codeigniter4.github.io/userguide/installation/upgrade_447.html). ### Workarounds - Disabling Auto Routing prevents a known attack vector in the framework. - Do not pass invalid values to the `lang()` function or `Language` class. ### References - https://codeigniter4.github.io/userguide/outgoing/localization.html#language-localization - h