HOMEVULNERABILITIESCVE-2024-24753
MEDIUM

CVE-2024-24753

CWE-436Published: February 1, 2024· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2024-24753 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Vendors & Products

mnapoli1 product(s)
bref
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/brefphp/bref/commit/f834027aaf88b3885f4aa8edf6944ae920daf2dc
PATCHhttps://github.com/brefphp/bref/commit/f834027aaf88b3885f4aa8edf6944ae920daf2dc
ADVISORYhttps://github.com/brefphp/bref/security/advisories/GHSA-99f9-gv72-fw9r
ADVISORYhttps://github.com/brefphp/bref/security/advisories/GHSA-99f9-gv72-fw9r

All References (4)

→
https://github.com/brefphp/bref/commit/f834027aaf88b3885f4aa8edf6944ae920daf2dcPatch
→
https://github.com/brefphp/bref/security/advisories/GHSA-99f9-gv72-fw9rExploit · Vendor Advisory
→
https://github.com/brefphp/bref/commit/f834027aaf88b3885f4aa8edf6944ae920daf2dcPatch
→
https://github.com/brefphp/bref/security/advisories/GHSA-99f9-gv72-fw9rExploit · Vendor Advisory

Quick Facts

CVE IDCVE-2024-24753
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-436
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 1, 2024

Related CVEs (CWE-436)

CVE-2023-24813
9.8
CVE-2021-45327
9.8
CVE-2020-10180
9.8
CVE-2024-24754
9.8
CVE-2026-32052
9.8
CVE-2026-8034
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2024-24753 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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