VulnerabilityPublished 26 Oct 2026

CVE-2026-94386: Apache Camel · Use of Cache Containing Sensitive Information

Affects Apache CamelSource CVE Database V5

Not known to be exploited · CVSS 4.8 Medium : upgrade to 4.22.2 when convenient.

Data as of 26 Oct 2026, 17:30 UTC

CVSS 3.1 base score

4.8Medium

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 4.22.2

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

Attack Vector: Network
Attack Complexity: High
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Apache to 4.22.2.

Affected software

Product	Affected	Fixed in
Apache Camelorg.apache.camel:camel-oauth	Affected >=4.19.0 <4.22.2	Fixed in 4.22.2
MavenApache Software Foundation/org.apache.camel:camel-oauth`pkg:maven/Apache Software Foundation/org.apache.camel:camel-oauth`Other threats	Affected >=4.19.0 <4.22.2	Fixed in 4.22.2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Apache Camel to version 4.22.2 or later, where this issue is fixed. For users on 4.22.x, upgrade to 4.22.2. Versions 4.19.x to 4.21.x are end-of-life and will not receive fixes; upgrade to a supported release is necessary. As a temporary workaround, disable token caching on OAuth profiles that share token endpoint and client ID by setting camel.oauth.NAME.cache-tokens=false or camel.oauth.cache-tokens=false to force token requests per profile. Alternatively, register separate clients at the identity provider for each profile requiring different scopes or client secrets to avoid shared client IDs.

Description

Use of Cache Containing Sensitive Information vulnerability in Apache Camel Oauth component. This issue affects Apache Camel: from 4.19.0 before 4.22.2. OAuthClientCredentialsTokenResolver obtains OAuth 2.0 bearer tokens through the client credentials grant on behalf of the components that authenticate their outbound calls with a named OAuth profile, such as camel-openai, camel-langchain4j-agent, camel-huggingface, camel-docling, camel-a2a, camel-spring-ai-chat and the IBM watsonx components, and of applications that call the OAuthClientAuthenticationFactory SPI directly. It kept the tokens it obtained in a static cache shared by every resolver instance and every CamelContext in the JVM, and keyed that cache on the token endpoint and the client ID only, although the token request also carries the client secret and the requested scope. Two profiles that share a token endpoint and a client ID but request different scopes, or authenticate with different client secrets, therefore mapped to the same cache entry: the profile that resolved a token first populated the entry, and the other profile was then handed that token, with no token request made under its own configuration, for as long as the token remained valid. Token caching is enabled by default, and pointing several profiles at one identity provider client is an ordinary use of the profile support rather than an opt-in to an insecure setting. The outcome is an outbound request that carries a token issued for another profile's scope, which can grant broader authority than the calling profile was configured for, or reach a service the token was not issued for; with identity providers that derive a token's audience from the requested scope, a different scope can mean a token for a different service altogether. A profile configured with a different client secret was likewise served the token obtained with the other secret, without authenticating with its own. The profiles are configured by the deployment, which is trusted, so no untrusted input reaches the cache: the party that gains is the service that receives a token it was not meant to receive, which, if hostile or compromised, can replay that token within its scope. Reaching the issue requires a deployment that defines more than one profile sharing a token endpoint and client ID while differing in scope or client secret. Users are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. The 4.19.x to 4.21.x release lines reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release. For deployments that cannot upgrade immediately, disable token caching on every OAuth profile that shares a token endpoint and client ID with another profile, by setting camel.oauth.NAME.cache-tokens=false for a named profile or camel.oauth.cache-tokens=false for the default one, so that each resolution requests a token with that profile’s own scope and client secret, at the cost of a token request on every resolution. Alternatively, register a separate client at the identity provider for each profile that needs a different scope or client secret, so that no two such profiles share a client ID.

Impact

The vulnerability allows outbound requests to carry OAuth tokens issued for different scopes or client secrets than intended, potentially granting broader authority or access to unintended services. This can lead to unauthorized access if the recipient service is hostile or compromised and replays the token. The impact is limited to token misuse within the scope of the affected OAuth profiles sharing token endpoints and client IDs.

Summary

Apache Camel's OAuthClientCredentialsTokenResolver caches OAuth 2.0 bearer tokens in a static cache keyed only by token endpoint and client ID, ignoring client secret and requested scope. Consequently, multiple profiles sharing the same token endpoint and client ID but differing in scope or client secret receive the same cached token. This can cause tokens issued for one profile's scope to be used by another profile, potentially granting broader or unintended access. The vulnerability affects Apache Camel versions >=4.19.0 and <4.22.2. It is fixed in version 4.22.2. Users are advised to upgrade to 4.22.2 or later. Temporary mitigation includes disabling token caching per profile or using separate clients per profile at the identity provider.

CWE-524Use of Cache Containing Sensitive Information (opens in a new tab)
Base weakness
The code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere.
Architecture and Design
Protect information stored in cache.
Architecture and Design
Do not store unnecessarily sensitive information in the cache.
Architecture and Design
Consider using encryption in the cache.
OWASP ASVS 4.0.3
V8.1.1 (opens in a new tab)
V8.1.2 (opens in a new tab)
Attack patterns
Lifting Sensitive Data Embedded in Cache (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Oct 2026, 15:04 UTC

WeaknessesCWE-524

Technical details

References

Community reviews

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