CVE.org (no NVD analysis yet)· CNA apache

CVE-2026-85301: Apache Camel: Camel-Keycloak Issuer Validation Bypass When the Introspection Response Omits the iss Claim

Noroxi assessment

Priority: Monitor (action score 19/100)

Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 0.30% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
Fixed version: Apache Software Foundation Apache Camel 4.18.5, 4.22.1.

Low priority for now. Upgrade to Apache Software Foundation Apache Camel 4.18.5, 4.22.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Improper Authentication vulnerability in Apache Camel Keycloak component. This issue affects Apache Camel: from 4.15.0 before 4.18.5, from 4.19.0 before 4.22.1. The security processor validated the issuer of an introspected token only when the introspection response actually carried an iss claim. When the claim was absent the check was skipped rather than treated as a failure, so a token that the configured issuer did not mint could be accepted provided the introspection endpoint answered without naming an issuer. Reaching this requires an introspection endpoint that omits iss and accepts tokens from more than one issuer, which is not the default Keycloak arrangement, hence the low severity; where that arrangement exists the consequence is that the deployment authenticates a caller it should have rejected. Upgrade to Apache Camel 4.23.0, which fixes the issue. Users on the 4.18.x LTS releases stream should upgrade to 4.18.5. Users on the 4.22.x LTS releases stream should upgrade to 4.22.1. An absent iss claim is now treated as a validation failure rather than as a reason to skip the check. For deployments that cannot upgrade immediately, ensure the introspection endpoint returns the iss claim, and that it serves exactly one issuer.

MediumCVSS 4.8 · v3.1—Proof of concept Fix available

EUVD-2026-104198

Published: Oct 19, 2026
Updated: Oct 19, 2026
EPSS: 0.3% · 22th percentile
CWE: CWE-287

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 19 / 40 · 4.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.3%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · apache: 4.8; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

Apache Software Foundation Apache Camel
- 4.18.5, 4.22.1, 4.23.0not affected
- 4.15.0 and later · before 4.18.5affected · maven
- 4.19.0 and later · before 4.22.1affected · maven

Same product

apache software foundation: all records

Other highest-scoring records for the same primary product.

CVE-2026-83531Apache Camel: Camel-Dynamic-Router Control Endpoint Compiles Predicate Expressions Supplied by Control Messages
35Monitor
CVE-2026-78165Apache Camel: Camel-Spring-Redis Unfiltered Java Deserialization of Redis Payloads
35Monitor
CVE-2026-88901Apache Camel: Camel-Smooks XML External Entity Processing, external entities resolved by default
32Monitor

Published before and after this one in the same product

← EarlierCVE-2026-85248Oct 19, 2026 · Apache Camel: Camel-PQC Signature Verification Bypass via a Shared Unsynchronized Signature Instance
23Monitor
← EarlierCVE-2026-85300Oct 19, 2026 · Apache Camel: Camel-PQC Private Key Disclosure via Key Material Written with Default File Permissions
22Monitor
Later →CVE-2026-91858Oct 19, 2026 · Apache Camel: Camel-FOP Resolves External DTDs and Entities From Untrusted XSL-FO Input When a Third-Party JAXP TransformerFactory Is Present
26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Apache Software Foundation Apache Camel	4.18.5	Vendor (CNA)
Apache Software Foundation Apache Camel	4.22.1	Vendor (CNA)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:0	2026-10-20

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedOct 19, 2026
Fix recordedOct 19, 2026same day
First PoCOct 20, 2026+1 d
TodayNov 6, 2026+18 d

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Claude Securityfinder
Andrea Cosentinoremediation developer

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-803120 days apartApache Camel: Camel-OAuth Authentication Bypass via Fail-Open Processors
32Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

CVE-2026-781650 days apartApache Camel: Camel-Spring-Redis Unfiltered Java Deserialization of Redis Payloads
35Monitor
CVE-2026-835310 days apartApache Camel: Camel-Dynamic-Router Control Endpoint Compiles Predicate Expressions Supplied by Control Messages
35Monitor
CVE-2026-956287 days apartApache Camel: Camel-Docling Custom CLI Argument Path Validation Does Not Reject Absolute Paths (Incomplete Fix of CVE-2026-40047)
21Monitor
CVE-2026-956297 days apartApache Camel: Camel-Docling Unvalidated Output Path Header Enables Writing Conversion Output to an Arbitrary Directory
21Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
Special conditions such as timing or configuration are required.

If successful

Confidentiality: low · data can be read
Integrity: low · data or configuration can be modified
Availability: none

Attack vector: Network
Attack complexity: High
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: Low
Integrity impact: Low
Availability impact: None

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

nvd-secondary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1app.use("/admin", requireSession, adminRouter);
2

3// Route added later skips the middleware
4app.post("/admin-api/config", updateConfig);

Fixed

1const admin = express.Router();
2admin.use(requireSession, requireRole("admin"));
3

4admin.post("/config", updateConfig);
5app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

Exploit maturitynone → pocOct 21, 2026, 3:37 AM UTC
SSVC exploitation— → noneOct 19, 2026, 4:07 PM UTC
Exploit maturity— → noneOct 19, 2026, 12:07 PM UTC
Fix✗ → ✓Oct 19, 2026, 12:07 PM UTC

For records you follow, these changes also arrive as notifications. →

References

camel.apache.org/security/CVE-2026-85301.html

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records