VDB-366409 · CVE-2026-48921 · EUVD-2026-32512

Groovy Libraries Plugin up to 797.v90ea_a_9b_e45a_0 on Jenkins Symbolic Links information disclosure

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Groovy Libraries Plugin up to 797.v90ea_a_9b_e45a_0 on Jenkins. Affected is an unknown function of the component Symbolic Links Handler. This manipulation causes information disclosure. The identification of this vulnerability is CVE-2026-48921. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in Groovy Libraries Plugin up to 797.v90ea_a_9b_e45a_0 on Jenkins. Affected by this vulnerability is an unknown functionality of the component Symbolic Links Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

Jenkins Pipeline: Groovy Libraries Plugin 797.v90ea_a_9b_e45a_0 and earlier does not prohibit symbolic links in shared libraries, allowing attackers able to control the content of a library used by a Pipeline job to read arbitrary files on the Jenkins controller filesystem.

The advisory is shared at jenkins.io. This vulnerability is known as CVE-2026-48921 since 05/26/2026. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-32512). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Jenkins Plugin

Name

Groovy Libraries Plugin

Version

797.v90ea_a_9b_e45a_0

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/26/2026 CVE reserved
05/27/2026 +1 days Advisory disclosed
05/27/2026 +0 days VulDB entry created
05/28/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: jenkins.io
Status: Confirmed

CVE: CVE-2026-48921 (🔒)
GCVE (CVE): GCVE-0-2026-48921
GCVE (VulDB): GCVE-100-366409
EUVD: 🔒

Entryinfo

Created: 05/27/2026 18:58
Updated: 05/28/2026 03:23
Changes: 05/27/2026 18:58 (54), 05/28/2026 03:23 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.