dependabot[bot] opened a new pull request, #39429: URL: https://github.com/apache/beam/pull/39429
Bumps [pyasn1](https://github.com/pyasn1/pyasn1) from 0.6.3 to 0.6.4. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/pyasn1/pyasn1/releases";>pyasn1's releases</a>.</em></p> <blockquote> <h2>Release 0.6.4</h2> <p>This is a security release.</p> <ul> <li>CVE-2026-59885 (GHSA-8ppf-4f7h-5ppj): Fixed quadratic time complexity in the OBJECT IDENTIFIER and RELATIVE-OID decoders. A small crafted substrate encoding many arcs could consume excessive CPU.</li> <li>CVE-2026-59884 (GHSA-m4p7-r5rc-7g4j): Limited BER long-form tag IDs to 20 octets (140 bits). Unbounded tag IDs allowed a crafted substrate to consume excessive CPU and memory.</li> <li>CVE-2026-59886 (GHSA-hm4w-wwcw-mr6r): Fixed excessive memory and CPU consumption in <code>Real.__float__()</code> for values with large base-10 exponents.</li> <li>Pinned PyPI publish GitHub Action to an immutable commit.</li> </ul> <p>All changes are noted in the <a href="https://github.com/pyasn1/pyasn1/blob/main/CHANGES.rst";>CHANGELOG</a>.</p> </blockquote> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/pyasn1/pyasn1/blob/main/CHANGES.rst";>pyasn1's changelog</a>.</em></p> <blockquote> <h2>Revision 0.6.4, released 08-07-2026</h2> <ul> <li>CVE-2026-59885 (GHSA-8ppf-4f7h-5ppj): Fixed quadratic time complexity in the OBJECT IDENTIFIER and RELATIVE-OID decoders. A small crafted substrate encoding many arcs could consume excessive CPU. Arcs are now accumulated in linear time; decoded values are unchanged (thanks for reporting, tynus2)</li> <li>CVE-2026-59884 (GHSA-m4p7-r5rc-7g4j): Limited BER long-form tag IDs to 20 octets (140 bits), matching the OID arc limit introduced in 0.6.2. Unbounded tag IDs allowed a crafted substrate to consume excessive CPU and memory; longer tag IDs are now rejected with PyAsn1Error. Also fixed Tag and TagSet repr() failing on huge tag (thanks for reporting, mikeappsec) IDs due to the integer-to-string conversion limit (Python 3.11+)</li> <li>CVE-2026-59886 (GHSA-hm4w-wwcw-mr6r): Fixed excessive memory and CPU consumption in Real.<strong>float</strong>() for values with large base-10 exponents. Conversion no longer materializes huge intermediate integers; values too large to represent as a Python float raise OverflowError promptly, and prettyPrint() renders them as '<!-- raw HTML omitted -->' as before. Also fixed base-10 mantissa normalization to use exact integer arithmetic; mantissas larger than 2**53 could previously lose precision through float division (thanks for reporting, gvozdila)</li> <li>Pinned PyPI publish GitHub Action to an immutable commit [pr <a href="https://redirect.github.com/pyasn1/pyasn1/issues/113";>#113</a>](<a href="https://redirect.github.com/pyasn1/pyasn1/pull/113";>pyasn1/pyasn1#113</a>)</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/pyasn1/pyasn1/commit/72e4803405816c371ed3b2cb4be181c47f038406";><code>72e4803</code></a> Prepare release 0.6.4</li> <li><a href="https://github.com/pyasn1/pyasn1/commit/0c19eeb853731db1c717ff125ea001a1e558332d";><code>0c19eeb</code></a> Pin PyPI publish action to immutable commit (<a href="https://redirect.github.com/pyasn1/pyasn1/issues/113";>#113</a>)</li> <li><a href="https://github.com/pyasn1/pyasn1/commit/45bdb19eb7df4b3780fe9c912c63e99bffc39dd9";><code>45bdb19</code></a> Merge commit from fork</li> <li><a href="https://github.com/pyasn1/pyasn1/commit/628e36ecbb5277a3f01572ce418ef54271b165a5";><code>628e36e</code></a> Merge commit from fork</li> <li><a href="https://github.com/pyasn1/pyasn1/commit/e60c691cb91addb8fcefa2f537e85ede6fb1e886";><code>e60c691</code></a> Merge commit from fork</li> <li>See full diff in <a href="https://github.com/pyasn1/pyasn1/compare/v0.6.3...v0.6.4";>compare view</a></li> </ul> </details> <br /> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. 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