CVE-2026-53435 | Vulnerability Intelligence

Stored catalog record

Source record retrieved 2026-10-28T10:25:24.582626+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.

Vulnerability overview

In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards. This can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller.

Patch review priority

Elevated predicted exploitation

EPSS probability is at least 10%; this is a published triage threshold, not a combined risk score.

FIRST EPSS: 53.13% · percentile 99.0 · score date 2026-10-27.

EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗

Severity and scoring

CVSS score: 8.8 · HIGH
CVSS version: 3.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-502

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
Before (exclusive): 2.555.3
cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
Before (exclusive): 2.568

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

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