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CVE-2021-43495

38
FAUCET Score

CVE-2021-43495 is a directory traversal vulnerability affecting the AlquistManager branch of alquistai alquist, specifically in the alquist/IO/input.py component. This flaw allows an unauthenticated attacker to read arbitrary files on the system, potentially disclosing critical secrets and aiding in remote code execution. With a CVSS score of 7.5 (HIGH), it presents a significant risk due to its network-based attack vector and low attack complexity, leading to high confidentiality impact. While not listed in CISA's KEV catalog, Nuclei templates exist for detecting this Local File Inclusion, indicating readily available exploit code, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
2017-06-13CPE matchmatch criteria
cpe:2.3:a:alquistai:alquist:2017-06-13:*:*:*:*:*:*:*

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
9.05%
Probability of exploitation in next 30 days
EPSS Percentile
94.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-43495 · Nov 23, 2021
This CVE's current EPSS score of 0.0905 is in the 91st percentile among its peer group of 51,506 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 / AlquistManager/alquist/issues/43
ExploitThird Party Advisory