• Hey,

    I was wondering if anybody else was having this issue, over 50 sites on IIS and Linux servers can not be updated to 7.0.4 from version 7.0.3 with the following error:

    Downloading update from https://downloads.wordpress.org/release/wordpress-7.0.4-partial-3.zip…

    Download failed.: The checksum of the file (d41d8cd98f00b204e9800998ecf8427e) does not match the expected checksum value (6ae4a31d00882ee697475c2601e7006d).

    Installation failed.

    Is there anyone also having this error?

    The page I need help with: [log in to see the link]

Viewing 9 replies - 1 through 9 (of 9 total)
  • Moderator threadi

    (@threadi)

    Is the problem still occurring right now?

    Thread Starter Frank Vano

    (@frankruimte)

    Yes it is, same error. And also issues reporting with updating plugins. Based in the Netherlands.

    Downloading update from https://downloads.wordpress.org/release/wordpress-7.0.4-partial-3.zip…

    Download failed.: The checksum of the file (d41d8cd98f00b204e9800998ecf8427e) does not match the expected checksum value (6ae4a31d00882ee697475c2601e7006d).

    Installation failed.

    Thread Starter Frank Vano

    (@frankruimte)

    Any update? We still have the same issue, also with a different update package:

    Update aan het downloaden van https://downloads.wordpress.org/release/nl_NL/wordpress-7.0.4.zip…

    Download mislukt.: De checksum van de bestanden (d41d8cd98f00b204e9800998ecf8427e) komt niet overeen met de verwachte checksum waarde (3fb7ca2a87ec005fc5bf726831af7272).

    Installatie mislukt.

    Moderator threadi

    (@threadi)

    Have you checked to see if there’s enough storage space on your hosting account? Also check under Tools > Site Health to see if any issues are listed there.

    Since this is a security update, you could also quickly install it manually as described here: https://wordpress.org/documentation/article/updating-wordpress/#manual-update

    Thread Starter Frank Vano

    (@frankruimte)

    There is enough space. By the time we finished manual updating 7.1 is gonna be out. The download simply fails. And using the update only results in the checksum error.

    Moderator threadi

    (@threadi)

    I haven’t had that happen on a single project of mine. What version of PHP are you using? The checksum is verified using PHP functions.

    The manual update actually takes just a few minutes if you have FTP access.

    Thread Starter Frank Vano

    (@frankruimte)

    The problem is the amount of sites that we would have to manually update then. I tried PHP version 8.3 8.4 and latest 8.5.5

    Thread Starter Frank Vano

    (@frankruimte)

    Here is the complete debug log I got, which shows that on our end everything works as it should:

    root@****:~# curl -I https://downloads.wordpress.org/release/wordpress-7.0.4-partial-3.zip
    HTTP/2 200
    server: nginx
    date: Fri, 14 Aug 2026 08:01:41 GMT
    content-type: application/zip
    content-length: 36425
    cache-control: private
    content-disposition: attachment; filename=wordpress-7.0.4-partial-3.zip
    last-modified: Wed, 12 Aug 2026 14:12:58 GMT
    content-md5: 6ae4a31d00882ee697475c2601e7006d
    alt-svc: clear
    x-nc: EXPIRED dca 5
    accept-ranges: bytes

    root@****:~# wget -S https://downloads.wordpress.org/release/wordpress-7.0.4-partial-3.zip
    –2026-08-14 10:02:24– https://downloads.wordpress.org/release/wordpress-7.0.4-partial-3.zip
    Resolving downloads.wordpress.org (downloads.wordpress.org)… 66.6.42.250, 2620:109:b00a::4206:2afa
    Connecting to downloads.wordpress.org (downloads.wordpress.org)|66.6.42.250|:443… connected.
    HTTP request sent, awaiting response…
    HTTP/1.1 200 OK
    Server: nginx
    Date: Fri, 14 Aug 2026 08:02:25 GMT
    Content-Type: application/zip
    Content-Length: 36425
    Connection: close
    Cache-control: private
    Content-Disposition: attachment; filename=wordpress-7.0.4-partial-3.zip
    Last-Modified: Wed, 12 Aug 2026 14:12:58 GMT
    Content-MD5: 6ae4a31d00882ee697475c2601e7006d
    Alt-Svc: clear
    X-nc: EXPIRED dca 3
    Accept-Ranges: bytes
    Length: 36425 (36K) [application/zip]
    Saving to: ‘wordpress-7.0.4-partial-3.zip’

    wordpress-7.0.4-partial-3.zip 100%[================================================================================================================================================================================================================>] 35.57K –.-KB/s in 0.1s

    2026-08-14 10:02:25 (314 KB/s) – ‘wordpress-7.0.4-partial-3.zip’ saved [36425/36425]

    root@****:~# php -r ‘

    $url=”https://downloads.wordpress.org/release/wordpress-7.0.4-partial-3.zip”;
    root@:~# var_dump($data === false ? false : strlen($data)); if ($data !== false) echo md5($data).PHP_EOL; ‘ int(36425) 6ae4a31d00882ee697475c2601e7006d root@:~#

    Moderator threadi

    (@threadi)

    Thanks for this detailed analysis. I tried to reproduce it on my end. The HTTP response is identical to yours, including the content-md5 value.

    Then I also saved the file locally. In your test, it apparently returns the correct MD5 there as well. I did it differently, but I got the same result. That’s because WordPress uses md5_file() to return the MD5 of the downloaded file (see https://github.com/WordPress/WordPress/blob/master/wp-admin/includes/file.php#L1382(. So I simply used this:

    <?php
    var_dump(md5_file(‘wordpress-7.0.4-partial-3.zip’));

    saved as a file and then ran it:

    > php test.php
    string(32) "6ae4a31d00882ee697475c2601e7006d"

    Since you’re getting the correct result there as well, the question is why WordPress is coming up with the wrong value during the actual update. The expected MD5 is correct, but the one calculated by your project from the downloaded file is not.

    Are you using any security plugins? Or is there a security tool in your hosting environment that could be changing the value?

Viewing 9 replies - 1 through 9 (of 9 total)

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