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Fix SetCookieHeaderValue.TryParse throwing ArgumentOutOfRangeException for Max-Age overflow #63323

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Merged
merged 5 commits into from
Aug 21, 2025
+36 −0
Merged

Fix SetCookieHeaderValue.TryParse throwing ArgumentOutOfRangeException for Max-Age overflow #63323

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a35662c
Initial plan
Copilot Aug 18, 2025
767fe8e
Fix TimeSpan overflow in SetCookieHeaderValue.TryParse for Max-Age
Copilot Aug 19, 2025
f10d364
Simplify overflow handling using exception handling instead of manual…
Copilot Aug 19, 2025
3d23d0a
Revert to manual validation approach instead of try-catch for TimeSpa…
Copilot Aug 19, 2025
ecd9567
Update src/Http/Headers/src/SetCookieHeaderValue.cs
danmoseley Aug 20, 2025
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10 changes: 9 additions & 1 deletion src/Http/Headers/src/SetCookieHeaderValue.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -587,7 +587,15 @@ private static int GetSetCookieLength(StringSegment input, int startIndex, out S
maxAge = -maxAge;
}

result.MaxAge = TimeSpan.FromSeconds(maxAge);
try
{
result.MaxAge = TimeSpan.FromSeconds(maxAge);
}
catch (ArgumentOutOfRangeException)
{
// MaxAge value would overflow TimeSpan, abort
return 0;
}
offset += itemLength;
}
// domain-av = "Domain=" domain-value
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26 changes: 26 additions & 0 deletions src/Http/Headers/test/SetCookieHeaderValueTest.cs
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Expand Up @@ -486,4 +486,30 @@ public void SetCookieHeaderValue_TryParseStrictList_FailsForAnyInvalidValues(
Assert.Null(results);
Assert.False(result);
}

[Theory]
[InlineData("name=value; max-age=922337203686")] // One more than TimeSpan.MaxValue.TotalSeconds
[InlineData("name=value; max-age=999999999999999999999")] // Much larger value
[InlineData("name=value; max-age=-922337203686")] // Negative overflow
public void SetCookieHeaderValue_TryParse_MaxAgeOverflow_ReturnsFalse(string value)
{
// Should return false instead of throwing ArgumentOutOfRangeException
bool result = SetCookieHeaderValue.TryParse(value, out var parsedValue);
Assert.False(result);
Assert.Null(parsedValue);
}

[Theory]
[InlineData("name=value; max-age=922337203685")] // Max valid value
[InlineData("name=value; max-age=-922337203685")] // Min valid value
[InlineData("name=value; max-age=0")] // Zero
[InlineData("name=value; max-age=86400")] // One day in seconds
public void SetCookieHeaderValue_TryParse_MaxAgeValid_ReturnsTrue(string value)
{
// Should successfully parse valid max-age values
bool result = SetCookieHeaderValue.TryParse(value, out var parsedValue);
Assert.True(result);
Assert.NotNull(parsedValue);
Assert.NotNull(parsedValue!.MaxAge);
}
}
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