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CVE-2021-31816

23
FAUCET Score

CVE-2021-31816 describes a plaintext password storage vulnerability affecting Octopus Server when initially configured with an external SQL database. During this setup, the database password is inadvertently written to the OctopusServer.txt log file. This vulnerability carries a CVSS v3.1 score of 7.5 (High), indicating a network-attackable flaw with low complexity that could lead to high confidentiality impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2020.6.5146CPE match
cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*
< 2021.1.7316CPE match
cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*
< 2020.6.5146CPE matchmatch criteria
cpe:2.3:a:octopus:server:*:*:*:*:*:*:*:*
>= 2021.1.0, < 2021.1.7316CPE matchmatch criteria
cpe:2.3:a:octopus:server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 30th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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 / adv/2021-05---Cleartext-Storage-of-Sensitive-Information-%28CVE-2021-31816%29.2121793537.html