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AWS cli documentation change

Service: cli · 2026-04-25 · Documentation low

File: cli/latest/reference/s3api/get-object-attributes.md

Summary

Updated CLI version reference from 2.34.34 to 2.34.37 and added documentation for new checksum fields (ChecksumSHA512, ChecksumMD5, ChecksumXXHASH64, ChecksumXXHASH3, ChecksumXXHASH128) in both the main Checksum structure and ObjectParts structure for multipart uploads.

Security assessment

The change adds documentation for additional checksum algorithms that can be used for data integrity verification. While checksums are security-adjacent features for ensuring data integrity and detecting corruption/tampering, there is no evidence in the diff that this change addresses a specific security vulnerability or incident. It appears to be a feature enhancement expanding supported checksum algorithms.

Diff

diff --git a/cli/latest/reference/s3api/get-object-attributes.md b/cli/latest/reference/s3api/get-object-attributes.md
index 857c85756..814561d95 100644
--- a//cli/latest/reference/s3api/get-object-attributes.md
+++ b//cli/latest/reference/s3api/get-object-attributes.md
@@ -15 +15 @@
-  * [AWS CLI 2.34.34 Command Reference](../../index.html) »
+  * [AWS CLI 2.34.37 Command Reference](../../index.html) »
@@ -508,0 +509,20 @@ Checksum -> (structure)
+> ChecksumSHA512 -> (string)
+>
+>> The Base64 encoded, 512-bit `SHA512` digest of the object. This checksum is present if the object was uploaded with the `SHA512` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+> 
+> ChecksumMD5 -> (string)
+>
+>> The Base64 encoded, 128-bit `MD5` digest of the object. This checksum is present if the object was uploaded with the `MD5` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+> 
+> ChecksumXXHASH64 -> (string)
+>
+>> The Base64 encoded, 64-bit `XXHASH64` checksum of the object. This checksum is present if the object was uploaded with the `XXHASH64` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+> 
+> ChecksumXXHASH3 -> (string)
+>
+>> The Base64 encoded, 64-bit `XXHASH3` checksum of the object. This checksum is present if the object was uploaded with the `XXHASH3` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+> 
+> ChecksumXXHASH128 -> (string)
+>
+>> The Base64 encoded, 128-bit `XXHASH128` checksum of the object. This checksum is present if the object was uploaded with the `XXHASH128` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+> 
@@ -585,0 +606,20 @@ ObjectParts -> (structure)
+>>> 
+>>> ChecksumSHA512 -> (string)
+>>>
+>>>> The Base64 encoded, 512-bit `SHA512` digest of the part. This checksum is present if the multipart upload request was created with the `SHA512` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+>>> 
+>>> ChecksumMD5 -> (string)
+>>>
+>>>> The Base64 encoded, 128-bit `MD5` digest of the part. This checksum is present if the multipart upload request was created with the `MD5` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+>>> 
+>>> ChecksumXXHASH64 -> (string)
+>>>
+>>>> The Base64 encoded, 64-bit `XXHASH64` checksum of the part. This checksum is present if the multipart upload request was created with the `XXHASH64` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+>>> 
+>>> ChecksumXXHASH3 -> (string)
+>>>
+>>>> The Base64 encoded, 64-bit `XXHASH3` checksum of the part. This checksum is present if the multipart upload request was created with the `XXHASH3` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
+>>> 
+>>> ChecksumXXHASH128 -> (string)
+>>>
+>>>> The Base64 encoded, 128-bit `XXHASH128` checksum of the part. This checksum is present if the multipart upload request was created with the `XXHASH128` checksum algorithm. For more information, see [Checking object integrity](https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html) in the _Amazon S3 User Guide_ .
@@ -629 +669 @@ ObjectSize -> (long)
-  * [AWS CLI 2.34.34 Command Reference](../../index.html) »
+  * [AWS CLI 2.34.37 Command Reference](../../index.html) »