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CVE-2024-38358

13
FAUCET Score

CVE-2024-38358 affects Wasmer, a WebAssembly runtime, allowing WASI programs to traverse symlinks outside preopened directories and access the host filesystem if specific flags are set, or crash the runtime by creating and opening external symlinks. This vulnerability has a low CVSS score of 2.9, indicating a low attack complexity and limited impact (potential for low confidentiality impact). There are no known exploits in the wild, no public exploit code available, and minimal community discussion or media coverage, suggesting a low current threat level. Users are advised to upgrade to version 4.3.2 or later, as no workarounds exist.

Impacted Technologies

VendorProductVersion(s)CPE
WasmerioWasmer
< 4.3.2CNA affected

CVSS Data

CVSS version used by this source: 3.1

2.9LOW

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.4
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 8th percentile among its peer group of 747 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 Advisories (1)

rustGHSA-55f3-3qvg-8pv5low

Symlink bypasses filesystem sandbox

Jun 7, 2024

References

github.com / wasmerio/wasmer/commit/b9483d022c602b994103f78ecfe46f017f8ac662
github.com / wasmerio/wasmer/security/advisories/GHSA-55f3-3qvg-8pv5