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Not in CISA KEV
HIGH severity

CVE-2020-2114

HIGH

CVE-2020-2114 is a high-severity (CVSS 7.5) CWE-522 vulnerability in jenkins s3 publisher. O3 Security detects and blocks CVE-2020-2114 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.

Jenkins S3 publisher Plugin 0.11.4 and earlier transmits configured credentials in plain text as part of the global Jenkins configuration form, potentially resulting in their exposure.

Published
Feb 12, 2020
Updated
Jun 17, 2026
Affected
1 product
Patched
See advisory
Exploits
None indexed
Exploitation data as of Jun 17, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

Jenkins S3 publisher Plugin 0.11.4 and earlier transmits configured credentials in plain text as part of the global Jenkins configuration form, potentially resulting in their exposure.

Affected Products

1 product · 1 configurations
Application
s3 publisherjenkins
≤ 0.11.4
range

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every jenkins s3 publisher deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

  2. Remediation status

    No patch has shipped for CVE-2020-2114 yet — track the jenkins s3 publisher advisory for a fixed release and apply the workarounds below in the meantime.

  3. Mitigate without a patch

    Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

  4. How O3 protects you

    O3 detects and blocks CVE-2020-2114 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2020-2114. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Jenkins S3 publisher Plugin 0.11.4 and earlier transmits configured credentials in plain text as part of the global Jenkins configuration form, potentially resulting in their exposure.
O3 Security · Runtime Protection

Is CVE-2020-2114 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2020-2114 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.