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CVE-2026-49210: XSS in symfony/ux-live-component via attacker-controlled child component tag

CVE-2026-49210: XSS in symfony/ux-live-component via attacker-controlled child component tag

Affected versions Symfony versions >=2.8.0, =3.0.0, <3.1.0 of the Symfony UX Live Component component are affected by this security issue. The issue has been fixed in Symfony 2.36.0, 3.1.0. Description Symfony\UX\LiveComponent\Util\ChildComponentPartialRenderer::createHtml()…

Symfony Blog
CVE-2026-49209: Denial of service in symfony/ux-live-component via unbounded batch action requests

CVE-2026-49209: Denial of service in symfony/ux-live-component via unbounded batch action requests

Affected versions Symfony versions >=2.5.0, =3.0.0, <3.1.0 of the Symfony UX Live Component component are affected by this security issue. The issue has been fixed in Symfony 2.36.0, 3.1.0. Description Symfony\UX\LiveComponent\Controller\BatchActionController::__invoke()…

Symfony Blog
datasette 1.0a31

datasette 1.0a31

Release: datasette 1.0a31 Another significant alpha release, with two new headline features. Datasette now offers users with the necessary permissions the ability to both execute write queries against their database and to save stored queries (renamed from "canned queries") both privately and for use by other members of their Datasette instance. There's more detail in SQL write queries and stored queries in Datasette 1.0a31 on the Datasette blog, which now has three posts introducing new…

Simon Willison's Weblog
Anthropic's run-rate revenue hits $47 billion

Anthropic's run-rate revenue hits $47 billion

The most interesting thing about Anthropic's $65B Series H announcement is this line (emphasis mine): Since our Series G in February, adoption has continued to grow across global enterprise customers, and our run-rate revenue crossed $47 billion earlier this month. Anthropic have made a bit of a habit of sharing their "run-rate revenue" in this kind of announcement, which is an annualized projection of their current revenue - typically calculated by taking the most recent month and multiplying…

Simon Willison's Weblog
Claude Opus 4.8: "a modest but tangible improvement"

Claude Opus 4.8: "a modest but tangible improvement"

Anthropic shipped Claude Opus 4.8 today. My favourite thing about it is this note in the release announcement: Users will find Opus 4.8 to be a modest but tangible improvement on its predecessor. There’s still more to be done: we’re working on developing and releasing models that provide many of the same capabilities as Opus at a lower cost. It's so refreshing to see an AI lab honestly describe a release as a minor incremental improvement over the previous model! Honesty seems to be a theme.…

Simon Willison's Weblog
llm-anthropic 0.25.1

llm-anthropic 0.25.1

Release: llm-anthropic 0.25.1 New model: Claude Opus 4.8 (claude-opus-4.8). New -o fast 1 option for fast mode, for organizations with that feature enabled on their account. Default max_tokens for each model now defaults to that model's maximum output rather than 8,192. #72 See also my notes on Opus 4.8 - I used this new release of llm-anthropic to generate the pelicans.

Simon Willison's Weblog
markdown-svg-renderer

markdown-svg-renderer

Tool: markdown-svg-renderer A slightly customized Markdown rendering tool with special treatment for fenced code SVG blocks - it both renders the image and provides a tab for switching to the code view. You can paste in Markdown or give it a URL to a CORS-enabled Markdown file or Gist. Here's an example where it loads a Markdown file full of LLM pelican logs for Opus 4.8. Tags: svg, tools, markdown, cors

Simon Willison's Weblog
Malicious NuGet Package Impersonates Sicoob SDK to Exfiltrate Banking Certificates and Passwords

Malicious NuGet Package Impersonates Sicoob SDK to Exfiltrate Banking Certificates and Passwords

Sicoob.Sdk releases 2.0.0 through 2.0.4 exfiltrate client IDs, PFX passwords, and base64-encoded PFX certificate archive contents through a third-party Sentry endpoint. The linked GitHub repository appears to be a clean-source façade for the malicious NuGet artifact. We analyzed a Sicoob-branded NuGet package, Sicoob.Sdk, that claimed to be an official C# SDK for Sicoob API integrations. Sicoob, formally the Sistema de Cooperativas de Crédito do Brasil, is one of Brazil’s largest cooperative…

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