certbot 5.8.0 crashes parsing Sectigo OCSP for ECDSA
certbot certificates crashes with a ValueError parsing Sectigo OCSP responses for ECDSA certificates since version 5.8.0.
Tier II · Emerging Problems that are still building up.
19 public reports · first reported 9 September 2026 · last reported 16 September 2026
What's going wrong
Since certbot 5.8.0, the certificate-checking command can crash with a ValueError when it reads OCSP responses from Sectigo for ECDSA certificates.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 19 reports are about, and how many came each month.
- Related problems.
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