CVE-2023-52354 is a high-severity (CVSS 7.5) CWE-444 vulnerability in github.com/albertito/chasquid. A fix is available for github.com/albertito/chasquid — see the affected versions and patch details below.
chasquid HTTP Request/Response Smuggling vulnerability
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-52354.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
github.com/albertito/chasquidReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
chasquid before 1.13 allows SMTP smuggling because LF-terminated lines are accepted.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/albertito/chasquid | all versions | 1.13go get github.com/albertito/chasquid@v1.13 |
Affected Products
chasquidblitiriDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/albertito/chasquid, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/albertito/chasquid to 1.13 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-52354 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Frequently Asked Questions
Is CVE-2023-52354 in your dependencies?
Find it across Go, including transitive dependencies.