CVE-2024-50379
Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability during JSP compilation in Apache Tomcat permits an RCE on case insensitive file systems when the default servlet is enabled for write (non-default configuration). This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.98, which fixes the issue.
- CVSS
- 9.8Criticalscored by CISA
- Exploited in the wild
- Not knownUnvetted proof-of-concept code on GitHub; not in CISA KEV
- EPSS
- 31.8%chance of exploitation in the next 30 daystop 2% of scored CVEsFIRST score of 11 Nov 2026
- Fix
- Patch availablesee the advisories in the references
- Published
- 17 Dec 2024analysed here 12 Nov 2026
Summary
Triage
The summary, impact and action text on this page are written by our AI analysis pipeline, or taken from the NVD description when a CVE was imported from NVD. They are not the vendor's wording: check them against the sources. A longer AI executive summary and technical analysis are generated for signed-in accounts on the Max plan.
Affected products
| Product | Affected versions | Vendor says fixed in |
|---|---|---|
| Apache Software Foundation Apache Tomcat | >= 11.0.0-M1 and <= 11.0.1>= 10.1.0-M1 and <= 10.1.33>= 9.0.0.M1 and <= 9.0.97>= 8.5.0 and <= 8.5.100>= 3 and < 8.5.0>= 10.0.0-M1 and <= 10.0.27Vendor says fixed in: not stated |
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
Products named in our analysis
- apache:tomcat
- netapp:bootstrap_os
Fix and mitigation
WAF and other mitigations
Can a WAF block it? Partly. The bug can be reached over the network, so generic WAF rules may stop some attacks. Its weakness type is unknown, so we cannot be more precise.
Also consider: patch
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Remediation steps (AI-written)
Step-by-step remediation is generated for accounts on the Max plan, for CVEs that match a technology in their stack. Add this technology to your stack to see the fix checklist.
Exploitation evidence
- CISA KEV catalog
- Not listed as of our last sync.
- Public exploit code
- Unvetted proof-of-concept code on GitHub: 15 GitHub proofs of concept
- CISA SSVC
- exploitation poc, automatable yes, technical impact totalAssessed by CISA 20 Mar 2025 (SSVC 2.0.3). Exploitation is none, poc (public proof of concept) or active.
GitHub proofs of concept
- SleepingBag945/CVE-2024-5037984 stars
- ph0ebus/Tomcat-CVE-2024-50379-Poc57 stars
- iSee857/CVE-2024-50379-PoC24 stars
- v3153/CVE-2024-50379-POC4 stars
and 11 more repositories
Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.
Timeline
- 17 Dec 2024Published
- 18 Dec 2024First proof-of-concept repository on GitHub (unvetted)same day later
- 20 Mar 2025CISA SSVC assessment: exploitation poc92 days (about 3 months) later
- 4 Nov 2026CVE record last updated594 days (about 2 years) later
- 12 Nov 2026Analysed by vulneraibility.com9 days later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Metric | Value | What it means |
|---|---|---|
| Attack vector | NetworkReachable over the internet or any routable network. | Reachable over the internet or any routable network. |
| Attack complexity | LowRepeatable attack, no special conditions. | Repeatable attack, no special conditions. |
| Privileges required | NoneThe attacker needs no prior access. | The attacker needs no prior access. |
| User interaction | NoneNo victim action needed. | No victim action needed. |
| Scope | UnchangedImpact stays within the vulnerable component. | Impact stays within the vulnerable component. |
| Confidentiality | HighTotal data disclosure possible. | Total data disclosure possible. |
| Integrity | HighComplete modification possible. | Complete modification possible. |
| Availability | HighFull outage possible. | Full outage possible. |
Common questions
Is CVE-2024-50379 being exploited?
Not confirmed. CVE-2024-50379 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 32% probability of exploitation in the next 30 days.
How severe is CVE-2024-50379?
CVE-2024-50379 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2024-50379?
Yes. A fix has been recorded for CVE-2024-50379. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2024-50379 affect?
CVE-2024-50379 affects apache:tomcat, netapp:bootstrap_os. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
References
5 references in the CVE record, grouped by the tags the record gives them.
Advisories (1)
- lists.apache.org /thread/y6lj6q1xnp822g6ro70tn19sgtjmr80r
Other links (4)
- openwall.com /lists/oss-security/2024/12/17/4
- openwall.com /lists/oss-security/2024/12/18/2
- security.netapp.com /advisory/ntap-20250103-0003/
- lists.debian.org /debian-lts-announce/2025/01/msg00009.html
Where the data on this page comes from
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- PoC-in-GitHub: GitHub repositories that claim a proof of concept
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.
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