CVE & CISA-KEV Catalog

CVE-2024-24753

MEDIUM
4.8
CVSS v3
NVD

Description

Bref enable serverless PHP on AWS Lambda. When Bref is used in combination with an API Gateway with the v2 format, it does not handle multiple values headers. If PHP generates a response with two headers having the same key but different values only the latest one is kept. If an application relies on multiple headers with the same key being set for security reasons, then Bref would lower the application security. For example, if an application sets multiple `Content-Security-Policy` headers, then Bref would just reflect the latest one. This vulnerability is patched in 2.1.13.

How to fix

Remediation Available
brefNVD
Affected:< 2.1.13Fixed in:2.1.13CVE-2024-24753derived from NVD

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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 ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityNone

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

Exploit Intelligence

0.43%probability of exploitation in 30 days
35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Exploit1

Related Vulnerabilities

Other CWE-436 vulnerabilities, ordered by exploit likelihood. View all

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CVE-2025-25292Critical9.864%-Fix
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CVE-2021-28474High8.851%-Fix
CVE-2025-25291Critical9.820%-Fix
CVE-2026-63030Critical9.88.9%KEVFix
CVE-2019-17596High7.54.7%-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 2024-11-21.