(mozilla-projects-nss-nss-3-122-1-release-notes)=

# NSS 3.122.1 release notes

## [Introduction](#introduction)

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Network Security Services (NSS) 3.122.1 was released on *13 April 2026*.
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## [Distribution Information](#distribution_information)

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The HG tag is NSS_3_122_1_RTM. NSS 3.122.1 requires NSPR 4.38.2 or newer.

NSS 3.122.1 source distributions are available on ftp.mozilla.org for secure HTTPS download:

- Source tarballs:
  <https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_3_122_1_RTM/src/>

Other releases are available {ref}`mozilla_projects_nss_releases`.
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(changes-in-nss-3-122-1)=

## [Changes in NSS 3.122.1](#changes_in_nss_3.122.1)

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- Bug 2030135 - improve error handling in PK11_ImportPrivateKeyInfoAndReturnKey.
- Bug 2029752 - Improving the allocation of S/MIME DecryptSymKey.
- Bug 2029462 - store email on subject cache_entry in NSS trust domain.
- Bug 2029425 - Heap use-after-free in cert_VerifyCertChainOld via dangling certsList[] entry on NameConstraints violation.
- Bug 2029323 - Improve size calculations in CMS content buffering.
- Bug 2028001 - avoid integer overflow while escaping RFC822 Names.
- Bug 2027378 - Reject excessively large ASN.1 SEQUENCE OF in quickder.
- Bug 2027365 - Deep copy profile data in CERT_FindSMimeProfile.
- Bug 2027345 - Improve input validation in DSAU signature decoding.
- Bug 2026311 - avoid integer overflow in RSA_EMSAEncodePSS.
- Bug 2026156 - Add a maximum cert uncompressed len and tests.
- Bug 2026089 - Clarify extension negotiation mechanism for TLS Handshakes.
- Bug 1935995 - make ss->ssl3.hs.cookie an owned-copy of the cookie.
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