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CVE-2020-15692

CRITICAL
9.8
CVSS Score
Published: August 14, 2020 at 06:45 PM UTC
Updated: June 17, 2026 at 02:57 AM UTC
1 product affected across 1 vendorNim

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Severity
CRITICAL9.8
Exploit prediction
EPSS 4%

Description

In Nim 1.2.4, the standard library browsers mishandles the URL argument to browsers.openDefaultBrowser. This argument can be a local file path that will be opened in the default explorer. An attacker can pass one argument to the underlying open command to execute arbitrary registered system commands.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Nim· Nim Lang
95%
v ≤ 1.2.6

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

Mailing Listx_refsource_MLISTExploitThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/02/04/1
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://consensys.net/diligence/vulnerabilities/nim-browsers-argument-injection/
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/browsers.nim#L48
x_refsource_CONFIRMRelease NotesThird Party Advisory
Source: [email protected]
https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.html

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-88

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