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superseded: bounded interactive menu choices are canonical in #330 #309

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superseded: bounded interactive menu choices are canonical in #330 #309

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5 changes: 5 additions & 0 deletions .jules/sentinel.md
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Original file line number Diff line number Diff line change
Expand Up @@ -2,3 +2,8 @@
**Vulnerability:** Unvalidated inputs passed to `if()` statements can cause process crashes (`condition has length > 1`) or unexpected coercion vulnerabilities.
**Learning:** In R, optional boolean parameters that default to `NULL` should be validated using explicit runtime type validation (e.g., `if (!is.null(flag) && (!is.logical(flag) || length(flag) != 1 || is.na(flag)))`).
**Prevention:** Always implement explicit runtime type validation for optional boolean parameters.

## 2024-08-30 - Fix weak regex validation for integer coercion

@devin-ai-integration devin-ai-integration Bot Aug 30, 2026

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🔍 Security note has wrong year

The new entry records 2024-08-30, while this change dates to 2026-08-30. The maintenance chronology is now inaccurate.

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**Vulnerability:** Weak regex `^[0-9]+$` on interactive inputs allowed arbitrarily large integers which coerce to `NA` in `as.integer()`, causing unhandled exceptions (DoS risk).
**Learning:** When validating single-digit interactive choices (e.g. 1 or 2) from strings, overly permissive regex exposes the application to unexpected NA coercion failures.
**Prevention:** Use strictly bounded exact-match regex like `^[12]$` for specific choice inputs to prevent coercion crashes.
6 changes: 3 additions & 3 deletions R/aFIPC.R
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Expand Up @@ -141,7 +141,7 @@ autoFIPC <-
}
for (attempt in seq_len(3)) {
n <- readline(prompt = "Is it correct? (1: Yes 2: No) : ")
if (grepl("^[0-9]+$", n)) {
if (grepl("^[12]$", n)) {

@devin-ai-integration devin-ai-integration Bot Aug 30, 2026

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🔍 Prompt fix lacks regression coverage

No test exercises grepl() with valid choices, invalid digits, or oversized input. The required regression evidence for this high-risk behavior change is absent.

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return(as.integer(n))
}
}
Expand Down Expand Up @@ -171,7 +171,7 @@ autoFIPC <-
readline(
prompt = "Do you want to use default BILOG-MG priors for oldform Data? (1: Yes 2: No) : "
)
if (grepl("^[0-9]+$", n)) {
if (grepl("^[12]$", n)) {
return(as.integer(n))
}
}
Expand Down Expand Up @@ -390,7 +390,7 @@ autoFIPC <-
readline(
prompt = "Do you want to use default BILOG-MG priors for newform Data? (1: Yes 2: No) : "
)
if (grepl("^[0-9]+$", n)) {
if (grepl("^[12]$", n)) {
return(as.integer(n))
}
}
Expand Down
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