From aa842db0c3c8d82f007f63e3e57c1f0670493ec8 Mon Sep 17 00:00:00 2001
From: Doug Walker <doug.walker@autodesk.com>
Date: Sat, 18 Apr 2026 17:30:37 -0400
Subject: [PATCH] Fix observed behavior

Signed-off-by: Doug Walker <doug.walker@autodesk.com>
---
 src/OpenColorIO/fileformats/FileFormatDiscreet1DL.cpp | 4 ++--
 src/OpenColorIO/fileformats/FileFormatIridasCube.cpp  | 8 ++++----
 src/OpenColorIO/fileformats/FileFormatSpi1D.cpp       | 8 ++++----
 src/OpenColorIO/fileformats/FileFormatSpi3D.cpp       | 5 ++---
 4 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/src/OpenColorIO/fileformats/FileFormatDiscreet1DL.cpp b/src/OpenColorIO/fileformats/FileFormatDiscreet1DL.cpp
index 6a76d968d4..31e8ae519f 100755
--- a/src/OpenColorIO/fileformats/FileFormatDiscreet1DL.cpp
+++ b/src/OpenColorIO/fileformats/FileFormatDiscreet1DL.cpp
@@ -411,9 +411,9 @@ int Lut1dUtils::IMLutGet(
     {
         char dstDepthS[16] = "";
 #ifdef _WIN32
-        const int nummatched = sscanf(InString, "%*s %d %d %s", &numtables, &length, dstDepthS, 16);
+        const int nummatched = sscanf_s(InString, "%*s %d %d %15s", &numtables, &length, dstDepthS, 16);
 #else
-        const int nummatched = sscanf(InString, "%*s %d %d %s", &numtables, &length, dstDepthS);
+        const int nummatched = sscanf(InString, "%*s %d %d %15s", &numtables, &length, dstDepthS);
 #endif
         std::string subStr(InString, 5);
         if (nummatched < 2 ||
diff --git a/src/OpenColorIO/fileformats/FileFormatIridasCube.cpp b/src/OpenColorIO/fileformats/FileFormatIridasCube.cpp
index ca2965e373..3a5b5ed79b 100755
--- a/src/OpenColorIO/fileformats/FileFormatIridasCube.cpp
+++ b/src/OpenColorIO/fileformats/FileFormatIridasCube.cpp
@@ -241,9 +241,9 @@ LocalFileFormat::read(std::istream & istream,
                 char domainMinB[64] = "";
 
 #ifdef _WIN32
-                if (sscanf_s(line.c_str(), "domain_min %s %s %s %c", domainMinR, 64, domainMinG, 64, domainMinB, 64, &endTok, 1) != 3)
+                if (sscanf_s(line.c_str(), "domain_min %63s %63s %63s %c", domainMinR, 64, domainMinG, 64, domainMinB, 64, &endTok, 1) != 3)
 #else
-                if (sscanf(line.c_str(), "domain_min %s %s %s %c", domainMinR, domainMinG, domainMinB, &endTok) != 3)
+                if (sscanf(line.c_str(), "domain_min %63s %63s %63s %c", domainMinR, domainMinG, domainMinB, &endTok) != 3)
 #endif
                 {
                     ThrowErrorMessage(
@@ -275,9 +275,9 @@ LocalFileFormat::read(std::istream & istream,
                 char domainMaxB[64] = "";
 
 #ifdef _WIN32
-                if (sscanf_s(line.c_str(), "domain_max %s %s %s %c", domainMaxR, 64, domainMaxG, 64, domainMaxB, 64, &endTok, 1) != 3)
+                if (sscanf_s(line.c_str(), "domain_max %63s %63s %63s %c", domainMaxR, 64, domainMaxG, 64, domainMaxB, 64, &endTok, 1) != 3)
 #else
-                if (sscanf(line.c_str(), "domain_max %s %s %s %c", domainMaxR, domainMaxG, domainMaxB, &endTok) != 3)
+                if (sscanf(line.c_str(), "domain_max %63s %63s %63s %c", domainMaxR, domainMaxG, domainMaxB, &endTok) != 3)
 #endif
                 {
                     ThrowErrorMessage(
diff --git a/src/OpenColorIO/fileformats/FileFormatSpi1D.cpp b/src/OpenColorIO/fileformats/FileFormatSpi1D.cpp
index 1cdc51b22c..d65df00065 100755
--- a/src/OpenColorIO/fileformats/FileFormatSpi1D.cpp
+++ b/src/OpenColorIO/fileformats/FileFormatSpi1D.cpp
@@ -135,9 +135,9 @@ CachedFileRcPtr LocalFileFormat::read(std::istream & istream,
                 char fromMinS[64] = "";
                 char fromMaxS[64] = "";
 #ifdef _WIN32
-                if (sscanf_s(lineBuffer, "From %s %s", fromMinS, 64, fromMaxS, 64) != 2)
+                if (sscanf_s(lineBuffer, "From %63s %63s", fromMinS, 64, fromMaxS, 64) != 2)
 #else
-                if (sscanf(lineBuffer, "From %s %s", fromMinS, fromMaxS) != 2)
+                if (sscanf(lineBuffer, "From %63s %63s", fromMinS, fromMaxS) != 2)
 #endif
                 {
                     ThrowErrorMessage("Invalid 'From' Tag", currentLine, headerLine);
@@ -219,11 +219,11 @@ CachedFileRcPtr LocalFileFormat::read(std::istream & istream,
 
                 char inputLUT[4][64] = {"", "", "", ""};
 #ifdef _WIN32
-                if (sscanf_s(lineBuffer, "%s %s %s %63s", inputLUT[0], 64,
+                if (sscanf_s(lineBuffer, "%63s %63s %63s %63s", inputLUT[0], 64,
                            inputLUT[1], 64, inputLUT[2], 64, inputLUT[3],
                            64) != components)
 #else
-                if (sscanf(lineBuffer, "%s %s %s %63s", inputLUT[0],
+                if (sscanf(lineBuffer, "%63s %63s %63s %63s", inputLUT[0],
                            inputLUT[1], inputLUT[2], inputLUT[3]) != components)
 #endif
                 {
diff --git a/src/OpenColorIO/fileformats/FileFormatSpi3D.cpp b/src/OpenColorIO/fileformats/FileFormatSpi3D.cpp
index c3ef153f43..2ac75422f9 100755
--- a/src/OpenColorIO/fileformats/FileFormatSpi3D.cpp
+++ b/src/OpenColorIO/fileformats/FileFormatSpi3D.cpp
@@ -153,14 +153,13 @@ CachedFileRcPtr LocalFileFormat::read(std::istream & istream,
         char blueValueS[64] = "";
 
 #ifdef _WIN32
-        if (sscanf(lineBuffer,
-            "%d %d %d %s %s %s",
+        if (sscanf_s(lineBuffer, "%d %d %d %63s %63s %63s",
             &rIndex, &gIndex, &bIndex,
             redValueS, 64,
             greenValueS, 64,
             blueValueS, 64) == 6)
 #else
-        if (sscanf(lineBuffer, "%d %d %d %s %s %s",
+        if (sscanf(lineBuffer, "%d %d %d %63s %63s %63s",
             &rIndex, &gIndex, &bIndex,
             redValueS, greenValueS, blueValueS) == 6)
 #endif