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CVE-2021-44139

37
FAUCET Score

CVE-2021-44139 describes a Server-Side Request Forgery (SSRF) vulnerability in Sentinel version 1.8.2, affecting HashiCorp Sentinel. This high-severity vulnerability, rated 7.5 CVSSv3, allows unauthenticated attackers to make arbitrary requests from the server, potentially leading to information disclosure. While there is no evidence of active exploitation or Metasploit modules, a Nuclei template exists for detection, and the CVE has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.8.2CPE matchmatch criteria
cpe:2.3:a:hashicorp:sentinel:1.8.2:*:*:*:*:*:*:*

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
6.49%
Probability of exploitation in next 30 days
EPSS Percentile
93.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Nuclei: CVE-2021-44139 · Jul 25, 2023
This CVE's current EPSS score of 0.0649 is in the 88th 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

github.com / alibaba/Sentinel/issues/2451
ExploitIssue TrackingThird Party Advisory