honojs hono up to 4.12.17 cache containing sensitive information

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in honojs hono up to 4.12.17. The affected element is an unknown function. Executing a manipulation can lead to use of cache containing sensitive information. This vulnerability is tracked as CVE-2026-44457. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in honojs hono up to 4.12.17 and classified as problematic. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a use of cache containing sensitive information vulnerability. The CWE definition for the vulnerability is CWE-524. The code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere. As an impact it is known to affect confidentiality. CVE summarizes:

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, Cache Middleware does not skip caching for responses that declare per-user variance via Vary: Authorization or Vary: Cookie. As a result, a response cached for one authenticated user may be served to subsequent requests from different users. This vulnerability is fixed in 4.12.18.

The advisory is available at github.com. This vulnerability was named CVE-2026-44457 since 05/06/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 4.12.18 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use of cache containing sensitive information
CWE: CWE-524
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: hono 4.12.18

Timelineinfo

05/06/2026 CVE reserved
05/13/2026 +7 days Advisory disclosed
05/13/2026 +0 days VulDB entry created
05/13/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-44457 (🔒)
GCVE (CVE): GCVE-0-2026-44457
GCVE (VulDB): GCVE-100-363622

Entryinfo

Created: 05/13/2026 18:15
Changes: 05/13/2026 18:15 (62)
Complete: 🔍
Cache ID: 216::103

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