CVE-2023-26145 is a high-severity (CVSS 7.4) OS Command Injection vulnerability in pydash. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for pydash — see the affected versions and patch details below.
pydash Command Injection vulnerability
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-26145.
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
pydashReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
This affects versions of the package pydash before 6.0.0. A number of pydash methods such as pydash.objects.invoke() and pydash.collections.invoke_map() accept dotted paths (Deep Path Strings) to target a nested Python object, relative to the original source object. These paths can be used to target internal class attributes and dict items, to retrieve, modify or invoke nested Python objects.
Note:
The pydash.objects.invoke() method is vulnerable to Command Injection when the following prerequisites are satisfied:
-
The source object (argument 1) is not a built-in object such as list/dict (otherwise, the init.globals path is not accessible)
-
The attacker has control over argument 2 (the path string) and argument 3 (the argument to pass to the invoked method)
The pydash.collections.invoke_map() method is also vulnerable, but is harder to exploit as the attacker does not have direct control over the argument to be passed to the invoked function.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | pydash | all versions | 6.0.0pip install --upgrade 'pydash==6.0.0' |
Affected Products
pydashderrickgillandResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for pydash, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update pydash to 6.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-26145 is resolved across your whole dependency graph.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
Frequently Asked Questions
Is CVE-2023-26145 in your dependencies?
Find it across PyPI, including transitive dependencies.