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11:30 AM

OpenSSL version 4.0.0-beta1 released

OpenSSL version 4.0 beta 1 released =================================== OpenSSL - The Open Source

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OpenSSL version 4.0.0-beta1 released

OpenSSL version 4.0 beta 1 released =================================== OpenSSL - The Open Source

11:30 AM

Blog on OpenSSL Library, Michael Richardson2

Mar 21

OpenSSL release signing key expiration extended

Blog on OpenSSL Library <nor...@openssl.org> wrote: > The expiration date of the OpenSSL

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OpenSSL release signing key expiration extended

Blog on OpenSSL Library <nor...@openssl.org> wrote: > The expiration date of the OpenSSL

Mar 21

Jeffrey Bromberger, Jon Ericson2

Mar 20

Am I in the right place?

On Fri, Mar 20, 2026 at 16:00 Jeffrey Bromberger <jbrom...@gmail.com> wrote: Hi! Before I

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Am I in the right place?

On Fri, Mar 20, 2026 at 16:00 Jeffrey Bromberger <jbrom...@gmail.com> wrote: Hi! Before I

Mar 20

Raghu Chidambaram, … Michael Wojcik8

Mar 20

OpenSSL 3.3.6 version showing critical vulnerability (CVE-2025-15467)

Thanks Wojcik for detailed information on the BD. That helps :) On Friday, 20 March 2026 at 21:30:44

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OpenSSL 3.3.6 version showing critical vulnerability (CVE-2025-15467)

Thanks Wojcik for detailed information on the BD. That helps :) On Friday, 20 March 2026 at 21:30:44

Mar 20

Tomas Mraz, … Viktor Dukhovni4

Mar 19

OpenSSL Security Advisory

The NVD classification for this basically non-issue is just hilarious. I have no further comments.

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OpenSSL Security Advisory

The NVD classification for this basically non-issue is just hilarious. I have no further comments.

Mar 19

Sands, Daniel N., … Tomas Mraz9

Mar 12

Can no longer receive short ASN1 messages

Okay, I just submitted a pull request referencing issue 22704. Please kick it around and offer any

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Can no longer receive short ASN1 messages

Okay, I just submitted a pull request referencing issue 22704. Please kick it around and offer any

Mar 12

Blog on OpenSSL Library

Mar 11

The OpenSSL Library no longer registers an atexit function

Previous posts about features removed from OpenSSL 4.0: 1. [ENGINE code](https://openssl-library.org/

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The OpenSSL Library no longer registers an atexit function

Previous posts about features removed from OpenSSL 4.0: 1. [ENGINE code](https://openssl-library.org/

Mar 11

Blog on OpenSSL Library

Mar 11

The OpenSSL Library now supports Encrypted Client Hello (ECH)

Previous posts about the upcoming OpenSSL 4.0 release: 1. [removing ENGINE code](https://openssl-

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The OpenSSL Library now supports Encrypted Client Hello (ECH)

Previous posts about the upcoming OpenSSL 4.0 release: 1. [removing ENGINE code](https://openssl-

Mar 11

Mar 10

OpenSSL version 4.0.0-alpha1 released

OpenSSL version 4.0 alpha 1 released ==================================== OpenSSL - The Open Source

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OpenSSL version 4.0.0-alpha1 released

OpenSSL version 4.0 alpha 1 released ==================================== OpenSSL - The Open Source

Mar 10

Shafiya Begum, Viktor Dukhovni2

Mar 8

iagnosing certificate chain issues after migrating to OpenSSL 3.x — intermediate cert not sent

On Sun, Mar 08, 2026 at 06:53:42PM -0700, Shafiya Begum wrote: > Several sites that recently

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iagnosing certificate chain issues after migrating to OpenSSL 3.x — intermediate cert not sent

On Sun, Mar 08, 2026 at 06:53:42PM -0700, Shafiya Begum wrote: > Several sites that recently

Mar 8

Tickerguy, Neil Horman3

Mar 2

Use of HMAC (stand-alone)

$ openssl version OpenSSL 3.0.16 11 Feb 2025 (Library: OpenSSL 3.0.16 11 Feb 2025) I do not have a

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Use of HMAC (stand-alone)

$ openssl version OpenSSL 3.0.16 11 Feb 2025 (Library: OpenSSL 3.0.16 11 Feb 2025) I do not have a

Mar 2

Andy Wood, Viktor Dukhovni3

Feb 28

ASN.1 parse asn1 parse error with openssl ca module, but no issues reported by x509 module or asn1parse module

Thank you much, that was the clue I needed! ^^ On Friday, February 27, 2026 at 2:42:00 AM UTC-8

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ASN.1 parse asn1 parse error with openssl ca module, but no issues reported by x509 module or asn1parse module

Thank you much, that was the clue I needed! ^^ On Friday, February 27, 2026 at 2:42:00 AM UTC-8

Feb 28

Manish Patidar, … Viktor Dukhovni8

Feb 24

Pure ML-DSA signature verification

On Tue, Feb 24, 2026 at 02:55:44PM +0100, Christian Schmidt wrote: > You wrote it yourself -

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Pure ML-DSA signature verification

On Tue, Feb 24, 2026 at 02:55:44PM +0100, Christian Schmidt wrote: > You wrote it yourself -

Feb 24

Blog on OpenSSL Library

Feb 18

OpenSSL 4.0 Alpha Repository Freeze Approaching

The OpenSSL Project is announcing the upcoming release of OpenSSL 4.0 Alpha, scheduled for March 10,

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OpenSSL 4.0 Alpha Repository Freeze Approaching

The OpenSSL Project is announcing the upcoming release of OpenSSL 4.0 Alpha, scheduled for March 10,

Feb 18

Avelino Herrera Morales, … Richard Levitte4

Feb 18

Emulate openssl_decrypt PHP on command line

I got it! The "666f3_SOME_HEX_HERE_4d4a" although is a hex string, that hex string must be

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Emulate openssl_decrypt PHP on command line

I got it! The "666f3_SOME_HEX_HERE_4d4a" although is a hex string, that hex string must be

Feb 18

Michał Trojnara

Feb 17

stunnel 5.77 released

Dear Users, I have released version 5.77 of stunnel. ### Version 5.77, 2026.02.17, urgency: MEDIUM *

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stunnel 5.77 released

Dear Users, I have released version 5.77 of stunnel. ### Version 5.77, 2026.02.17, urgency: MEDIUM *

Feb 17

Blog on OpenSSL Library

Feb 4

Custom method functions removed from the OpenSSL Library

Following on from the [removal of ENGINE code](https://openssl- library.org/post/2025-12-18-remove-

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Custom method functions removed from the OpenSSL Library

Following on from the [removal of ENGINE code](https://openssl- library.org/post/2025-12-18-remove-

Feb 4

SIMON BABY, … Viktor Dukhovni8

Feb 3

openssl x509 certificate question

Thank you Viktor On Tuesday, February 3, 2026, Viktor Dukhovni <openss...@dukhovni.org>

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openssl x509 certificate question

Thank you Viktor On Tuesday, February 3, 2026, Viktor Dukhovni <openss...@dukhovni.org>

Feb 3

Ken Goldman, … Viktor Dukhovni31

Jan 29

How to test a build of the FIPS provider

On Wed, Jan 28, 2026 at 06:26:32PM -0500, Ken Goldman wrote: > For the record, here are working

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How to test a build of the FIPS provider

On Wed, Jan 28, 2026 at 06:26:32PM -0500, Ken Goldman wrote: > For the record, here are working

Jan 29

Blog on OpenSSL Library

Jan 27

OpenSSL Release Announcement for 3.6.1, 3.5.5, 3.4.4, 3.3.6, 3.0.19, 1.1.1ze and 1.0.2zn

Release Announcement for OpenSSL Library **3.6.1** , **3.5 5** , **3.4.4** , **3.3.6** , **3.0.19** ,

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OpenSSL Release Announcement for 3.6.1, 3.5.5, 3.4.4, 3.3.6, 3.0.19, 1.1.1ze and 1.0.2zn

Release Announcement for OpenSSL Library **3.6.1** , **3.5 5** , **3.4.4** , **3.3.6** , **3.0.19** ,

Jan 27

Jan 27

OpenSSL Security Advisory (corrected - added CVE-2026-22795 and CVE-2026-22796)

OpenSSL Security Advisory [27th January 2026] ============================================= Improper

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OpenSSL Security Advisory (corrected - added CVE-2026-22795 and CVE-2026-22796)

OpenSSL Security Advisory [27th January 2026] ============================================= Improper

Jan 27

Jan 27

OpenSSL Security Advisory

OpenSSL Security Advisory [27th January 2026] ============================================= Improper

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OpenSSL Security Advisory

OpenSSL Security Advisory [27th January 2026] ============================================= Improper

Jan 27

Manish Patidar, Viktor Dukhovni2

Jan 27

OpenSSL config not loading

On Tue, Jan 27, 2026 at 02:29:57PM +0530, Manish Patidar wrote: > We are using OpenSSL 3.5, and

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OpenSSL config not loading

On Tue, Jan 27, 2026 at 02:29:57PM +0530, Manish Patidar wrote: > We are using OpenSSL 3.5, and

Jan 27

Harald Koch, … Richard Levitte5

Jan 22

cms signing error with SHA3-512 & PSS

Hello Richard, Am 22.01.2026 um 08:41 schrieb Richard Levitte <ric...@levitte.org>: On 1/21/26

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cms signing error with SHA3-512 & PSS

Hello Richard, Am 22.01.2026 um 08:41 schrieb Richard Levitte <ric...@levitte.org>: On 1/21/26

Jan 22

Ken Goldman, … Tomas Mraz4

Jan 21

Openssl 3.5 FIPS and SHA-1

Yes, SHA-1 is and should be in the FIPS provider for now. Tomas Mraz, Chief Technology Officer,

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Openssl 3.5 FIPS and SHA-1

Yes, SHA-1 is and should be in the FIPS provider for now. Tomas Mraz, Chief Technology Officer,

Jan 21

Jan 20

New OpenSSL Releases

The OpenSSL project team would like to announce the upcoming release of OpenSSL versions 3.6.1, 3.5.5

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New OpenSSL Releases

The OpenSSL project team would like to announce the upcoming release of OpenSSL versions 3.6.1, 3.5.5

Jan 20

Thomas Anderson

Jan 18

unable to verify a CMS signature without signedattrs

I'm trying to run this command: openssl cms -verify -in cms.pem -inform PEM -CAfile ca.pem ca.pem

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unable to verify a CMS signature without signedattrs

I'm trying to run this command: openssl cms -verify -in cms.pem -inform PEM -CAfile ca.pem ca.pem

Jan 18

Blog on OpenSSL Library

12/19/25

ENGINE code removed from the OpenSSL Library

OpenSSL 4.0, to be released in April 2026, is the first [major release](https://openssl-library.org/

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ENGINE code removed from the OpenSSL Library

OpenSSL 4.0, to be released in April 2026, is the first [major release](https://openssl-library.org/

12/19/25

Blog on OpenSSL Library

12/19/25

Vote now for the Foundation Business Advisory Committee

The voting from the Foundation BAC has been [extended through December 21](https://openssl-library.

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Vote now for the Foundation Business Advisory Committee

The voting from the Foundation BAC has been [extended through December 21](https://openssl-library.

12/19/25

Turritopsis Dohrnii Teo En Ming

12/5/25

ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32)) and OpenSSL 3.6.0

Subject: ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32))

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ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32)) and OpenSSL 3.6.0

Subject: ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32))

12/5/25

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