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20 August 2026

Vulnerabilities first published on this day (UTC), newest first.

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All Critical High Medium Low Exploited only Public exploit

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  • High 7.5
    CVE-2026-53587 Public exploit

    libgit2 - Unauthenticated network-reachable heap out-of-bounds read in transports/smart_pkt.c:set_data

    libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, libgit2 performs a fixed-size strncmp in set_data in src/libgi…

    libgit2 libgit2 libgit2 libgit2 Debian Ubuntu Azure Linux Alpine
  • High 8.2
    CVE-2026-40345 Public exploit

    deepmerge-ts: Stack exhaustion when merging recursive object graphs

    deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited objects or object pairs when recursively mergi…

    RebeccaStevens deepmerge-ts langfuse-3-worker langfuse-3 Wolfi npm
  • High 8.6
    CVE-2026-76564 Public exploit

    Joomla Extension - phoca.cz - Stored XSS via User-Agent header in Admin Order View in Phoca Cart 5.0.0-6.1.7

    Joomla Extension - phoca.cz - Stored XSS via User-Agent header in Admin Order View in Phoca Cart 5.0.0-6.1.7

    phoca.cz Phoca Cart extension for Joomla Web / CMS