GHSA-fpfv-jqm9-f5jm CVE-2021-34141 PYSEC-2021-855
Incorrect Comparison in NumPy
- Severity
- 5.3 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 1.68%
- Chance of exploitation in the next 30 days. Higher than 76.92% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-697 Incorrect Comparison
- Fix
1.22- Upgrade numpy to this version or later
Description
Incomplete string comparison in the numpy.core component in NumPy1.9.x, which allows attackers to fail the APIs via constructing specific string objects.
Affected versions
PyPI
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
numpy PyPI → 1.22
- pip
pip install --upgrade "numpy>=1.22"- poetry
poetry add "numpy>=1.22"- uv
uv add "numpy>=1.22"
Severity breakdown
CVSS 3.1 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Weakness
CWE-697: Incorrect Comparison
The product compares two entities in a security-relevant context, but the comparison is incorrect.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-f7c7-j99h-c22f Buffer Copy without Checking Size of Input in NumPy | Medium | Also affects numpy |
| GHSA-5545-2q6w-2gh6 NumPy NULL Pointer Dereference | High | Also affects numpy |
| GHSA-6p56-wp2h-9hxr NumPy Buffer Overflow (Disputed) | Medium | Also affects numpy |
| GHSA-9fq2-x9r6-wfmf Numpy Deserialization of Untrusted Data | Critical | Also affects numpy |
| GHSA-cw6w-4rcx-xphc Arbitrary file write in NumPy | Medium | Also affects numpy |
| GHSA-2fc2-6r4j-p65h Numpy arbitrary file write via symlink attack | Medium | Also affects numpy |
| GHSA-frgw-fgh6-9g52 Numpy missing input validation | High | Also affects numpy |
| GHSA-rpw4-54j3-4h4q ip-address: Address6.isLinkLocal() recognizes fe80::/64 rather than fe80::/10, allowing SSRF and trust-boundary bypass to on-link hosts | Medium | Same weakness, CWE-697 |
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