CVE-2026-71553
High
Description
ApostropheCMS is an open-source Node.js content management system. In 4.32.0 and earlier, PATCH /api/v1/article/:id accepts the inherited path toString.call and passes it through the utility module to apos.util.set() and apos.util.get(), allowing an authenticated editor to overwrite the shared Object.prototype.toString function's call property and cause a persistent process-wide denial of service until restart.
SeverityHigh
CVSS7.1
Exploit probability—
ProductApostrophe
PublishedAug 17, 2026
First seenAug 17, 2026
Weakness typeCWE-1321Prototype pollution
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apostrophenpm | v ≤ 4.32.0 | — |
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