Is CVE-2024-37568 in the CISA KEV catalog?

No. CVE-2024-37568 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-37568?

CVE-2024-37568 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2024-37568?

CVE-2024-37568 has an EPSS score of 0.38% (30th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-37568?

Upgrade python-authlib on debian 11 to 0.15.4-1+deb11u1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2024-37568

HIGH

7.5

CVSS v3

NVD

Description

lepture Authlib before 1.3.1 has algorithm confusion with asymmetric public keys. Unless an algorithm is specified in a jwt.decode call, HMAC verification is allowed with any asymmetric public key. (This is similar to CVE-2022-29217 and CVE-2024-33663.)

CWE-347 CWE-284Improper Access Control

How to fix

Remediation Available

python-authlibDebian

Fixed in:0.15.4-1+deb11u1CVE-2024-37568

Fixed in:1.2.0-1+deb12u1CVE-2024-37568

Fixed in:1.3.1-1CVE-2024-37568

python-authlibUbuntu

Fixed in:0.15.5-1ubuntu0.1~esm1USN-8065-1

Fixed in:1.3.0-1ubuntu0.1~esm1USN-8065-1

python-authlib-docUbuntu

Fixed in:0.15.5-1ubuntu0.1~esm1USN-8065-1

Fixed in:1.3.0-1ubuntu0.1~esm1USN-8065-1

python3-authlibUbuntu

Fixed in:0.15.5-1ubuntu0.1~esm1USN-8065-1

Fixed in:1.3.0-1ubuntu0.1~esm1USN-8065-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.38%probability of exploitation in 30 days

30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Exploit1

github.com

Other references4

Related Vulnerabilities

Other CWE-347 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-16042	Medium	6.5	82%	-	-
CVE-2025-59718	Critical	9.8	66%	KEV	Fix
CVE-2025-25292	Critical	9.8	64%	-	Fix
CVE-2021-22160	Critical	9.8	53%	-	Fix
CVE-2013-3900	Medium	5.5	45%	KEV	-
CVE-2018-0114	High	7.5	43%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.