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CVE-2022-24894

Symfony storing cookie headers in HttpCache

HIGH
8.8
CVSS Score
Published: February 3, 2023 at 09:46 PM UTC
Updated: June 17, 2026 at 04:32 AM UTC
2 products affected across 2 vendorsSymfonySymfony

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Severity
HIGH8.8
Exploit prediction
EPSS 4%
SSVC
No known exploit

Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The Symfony HTTP cache system, acts as a reverse proxy: It caches entire responses (including headers) and returns them to the clients. In a recent change in the `AbstractSessionListener`, the response might contain a `Set-Cookie` header. If the Symfony HTTP cache system is enabled, this response might bill stored and return to the next clients. An attacker can use this vulnerability to retrieve the victim's session. This issue has been patched and is available for branch 4.4.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Symfony· Sensiolabsdrupal
95%
2.0.0 ≤ v < 4.4.505.0.0 ≤ v < 5.4.26.0.0 ≤ v < 6.0.206.1.0 ≤ v < 6.1.126.2.0 ≤ v < 6.2.6
Affected range stops below 4.4.50, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.6, so it looks safe — our inference, not a vendor statement
Symfony· Symfonycomposer
60%
v < 4.4.50v < 5.4.20v < 6.0.20v < 6.1.12v < 6.2.6
Affected range stops below 4.4.50, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCPatch
Source: [email protected]
https://github.com/symfony/symfony/commit/d2f6322af9444ac5cd1ef3ac6f280dbef7f9d1fb
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/symfony/symfony/security/advisories/GHSA-h7vf-5wrv-9fhv
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/07/msg00014.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-285NVD-CWE-noinfo

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