CVE-2026-70377: imagecli - Uncontrolled Memory Allocation via Unbounded scale Ratio Causes Denial of Service

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-05 · updated 2026-10-24
Weakness: CWE-789

Description

imagecli's pipeline operation (Scale::apply in src/image_ops.rs) computes output width/height as (dimension as f32 * ratio) as u32 with no upper-bound validation on the CLI-supplied ratio, which is parsed via nom::number::complete::float with no range check. Any application embedding imagecli as a library and accepting user-controlled pipeline strings is remotely crashable with a single request.

Affected products

theotherphil imagecli: through 0.2.1

References

https://github.com/theotherphil/imagecli/issues/66
https://github.com/theotherphil/imagecli/issues/66

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