Bug report: IP Address extraction is not consistent when IPv4 address contains leading zeros

[ericli-splunk]

Describe the bug
When an IPv4 address contains a leading 0, many tools treat it as octal representation (e.g. https://superuser.com/a/857618). However, when extracting IP addresses using CyberChef, some octal IP addresses are extracted (e.g. 011.012.013.014), but some are not (e.g. 0377.0377.0377.0377).

To Reproduce
Steps to reproduce the behaviour or a link to the recipe / input used to cause the bug:

1. Go to https://gchq.github.io/CyberChef/#recipe=Extract_IP_addresses(true,false,false,false,false,false)&input=OS4xMC4xMS4xMgowMTEuMDEyLjAxMy4wMTQKCjI1NS4yNTUuMjU1LjI1NQowMzc3LjAzNzcuMDM3Ny4wMzc3Cg
2. See that 011.012.013.014 appears in the Output, but not 0377.0377.0377.0377.

Expected behaviour
Either both 011.012.013.014 and 0377.0377.0377.0377 appear in the Output, or neither.

Screenshots

Desktop (if relevant, please complete the following information):

• OS: macOS
• Browser: Chrome 134
• CyberChef version: 10.19.4

Additional context
The root cause is likely this regular expression:

CyberChef/src/core/operations/ExtractIPAddresses.mjs

Line 68 in d3357d2

ipv4 = "(?:(?:\\d|[01]?\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d\\d|\\d)(?:\\/\\d{1,2})?",