Comment by petecooper

>On Tuesday, October 20th, at around 15:00 UTC, the two CVE IDs began circulating on online forums and social media. They came with a wrong release time and a wrong CVSS score of 10.0 (the actual score is 9.2). No technical details leaked.

This was partly me. I take responsibility for posting it on HN. I am truly sorry for the disruption this has likely caused.

My contact had informed me there was no embargo, and told me her contact had told her the same. It transpired this morning that was a lie.

>On October 21st at 07:41 UTC, more than six hours before the coordinated release, Chainguard unilaterally broke the embargo and published built images containing the fix. Like other distributors, Chainguard had received the patch in advance so its users could update the moment the vulnerabilities were disclosed. Any attacker could now study the fix in binary form while every other PHP user was still waiting for the release. This disregarded weeks of work by many parties toward a coordinated disclosure.

On the plus side, at least I'm not Chainguard. Yikes.