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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-4881

27
FAUCET Score

In affected versions of Octopus Server, permissions were not checked correctly resulting in any authenticated user being able to make server level changes using a certain API endpoint despite receiving an error.

First published: Jun 4, 2026Last modified: Jun 4, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 2023.0.0, < 2025.4.10523CPE match
cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*
>= 2025.4.0, < 2025.4.10545CPE match
cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*
>= 2026.1.0, < 2026.1.11313CPE match
cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*
>= 2023.1.4189, < 2025.4.10545CPE matchmatch criteria
cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*
>= 2026.1.675, < 2026.1.11313CPE matchmatch criteria
cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

6.0MEDIUM

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 10th percentile among its peer group of 21,951 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

advisories.octopus.com / post/2026/sa2026-04
Vendor Advisory