CVE-2026-113593
Description
A flaw was found in Django. This vulnerability leads to information disclosure due to improper cache key generation when handling HTTP headers. The caching mechanism treats web requests that omit a specified header identically to requests that supply the header with an empty value. As a result, a remote attacker could receive cached responses intended for other requests, potentially exposing private data.
Statement
This vulnerability is rated as Low severity because successful exploitation requires highly specific conditions, where an application explicitly enables full-page caching on endpoints returning sensitive content differentiated by request headers. In default Red Hat product deployments, authenticated and user-specific endpoints typically disallow shared caching or do not rely on empty-versus-missing header distinctions for access boundaries. Consequently, the potential information leakage is constrained to non-standard configurations where unauthenticated callers can trigger and observe cached responses intended for distinct request contexts.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 3.7 | N/A | 3.1 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | High | N/A | High |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | Required |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | Low |
| Integrity Impact | None | N/A | None |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
cve.org: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
If the cache is accessible to unauthorized actors, attackers can read the cache and obtain this sensitive information.
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