CVE-2024-33664

Exp

python-jose through 3.3.0 allows attackers to cause a denial of service (resource consumption) during a decode via a crafted JSON Web Encryption (JWE) token with a high compression ratio, aka a "JWT bomb." This is similar to CVE-2024-21319.

Published: 2024-04-25 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

NVD Status：Analyzed，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2024-33664

EPSS CVSS CWE GHSA Exploit-DB Affected OS Tracker

Conclusion & alert: CVE-2024-33664 is rated Exploit Available (54.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.78%). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-33664

EDB-ID	Source	Kind	Published	Link
—	nvd_ref	exploit_tag		Exploit-DB ↗
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-33664

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.25%	0.78%	+0.52%
2	2026-05-14	0.19%	0.25%	+0.06%
3	2025-11-21	—	0.19%	—

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-33664

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.3	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.	3.9	1.4	134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-33664

CWE-400 MITRE ↗

GitHub Security Advisory for CVE-2024-33664

GHSA-cjwg-qfpm-7377 · Severity: medium · Ecosystem: pip — python-jose denial of service via compressed JWE content

OS Trackers for CVE-2024-33664

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2024-33664 not yet assigned priority: Debian including 1 source packages (python-jose), 1 status rows across 1 suites (bookworm): open 1.	https://security-tracker.debian.org/tracker/CVE-2024-33664
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2024-33664
`suse`	high	CVE-2024-33664 severity important: SUSE including 12 source package names (python-python-jose, python3-python-jose-3.0.1-bp155.3.6.1, …), 13 product×package rows across 5 product lines (SUSE Linux Enterprise Server 16.0, SUSE Package Hub 15 SP5, … (5 product lines)): Fixed 10, Known Not Affected 3.	https://www.suse.com/security/cve/CVE-2024-33664/
`ubuntu`	medium	CVE-2024-33664 medium priority: Ubuntu including 1 source packages (python-jose), 8 status rows across 8 suites (focal, jammy, mantic, noble, oracular, plucky, questing, upstream): DNE 4, needs-triage 3, ignored 1.	https://ubuntu.com/security/CVE-2024-33664

Affected software / configurations for CVE-2024-33664

Vendor	Product	Version	Raw CPE
python-jose_project	python-jose	<= 3.3.0	cpe:2.3:a:python-jose_project:python-jose::::::::

References for CVE-2024-33664

URL	Tags
https://github.com/mpdavis/python-jose/issues/344	Exploit Issue Tracking Mitigation Vendor Advisory
https://github.com/mpdavis/python-jose/pull/345	Issue Tracking Patch
https://www.vicarius.io/vsociety/posts/jwt-bomb-in-python-jose-cve-2024-33664	Exploit Mitigation Third Party Advisory

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