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CVE-2023-32691

20
FAUCET Score

CVE-2023-32691 is a medium-severity timing side-channel vulnerability affecting the gost (GO Simple Tunnel) project. It arises from the direct comparison of untrusted input from an HTTP header with a sensitive secret, allowing an attacker to deduce the secret through timing analysis. The vulnerability has a CVSS score of 5.9, indicating a network attack vector with high attack complexity and potential for 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
<= 2.11.5CPE matchmatch criteria
cpe:2.3:a:go_simple_tunnel_project:go_simple_tunnel:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
43.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 7th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

goGHSA-qjrq-hm79-49wwmedium

ginuerzh/gost vulnerable to Timing Attack

May 22, 2023

References

github.com / ginuerzh/gost/blob/1c62376e0880e4094bd3731e06bd4f7842638f6a/auth.go
Product
github.com / ginuerzh/gost/security/advisories/GHSA-qjrq-hm79-49ww
ExploitVendor Advisory