Distros list statistics and data for 2026

Statistics by month

Statistics are grouped by month of the issue being reported to the private list.

Month All reports Embargoed Average Median Min Max embargo days
2026-01 3 3 7.42 6.81 1.28 14.15
2026-02 4 4 11.57 12.70 6.75 14.15
2026-03 15 15 10.40 5.35 1.11 49.69
2026-04 16 16 9.84 6.06 3.60 31.98
Total 38 38 10.05 6.78 1.11 49.69

Non-embargoed reports (issue already posted to oss-security before being brought to (linux-)distros, which in 2026 didn't occur yet) are (would be) excluded from the calculation of average, median, and minimum embargo duration above.

Formatted input data

For the statistics above, we only use the first embargo duration seen in this table, which is the delay between postings to (linux-)distros and oss-security.

For some reports, there's a second embargo duration - that one is the delay (sometimes negative) between a first public posting elsewhere and the posting to (linux-)distros. Such first public posting often does not fully (or at all) reveal security relevance of the issue/fix, making it not-too-unreasonable to allow a little bit (more) of embargo time on the full detail, especially when that's the issue reporter's and/or the upstream project's preference.

Project Subjects/titles/links Time at distros (UTC)
… oss-security (UTC)
Elsewhere (UTC)
Embargo days Planned CRD(s)
(exact wording)
CVE(s)
OpenStack keystonemiddleware [vs] Vulnerability in OpenStack keystonemiddleware (CVE pending)
[oss-security] [CVE-2026-22797] OpenStack keystonemiddleware: Privilege Escalation via Identity Headers in External OAuth2 Tokens (CVE-2026-22797)
Thu Jan 08 20:01:47 2026
Thu Jan 15 15:32:58 2026
6.81 Thursday, 2026-01-15, 1500UTC
OpenSSL [vs-plain] Embargoed OpenSSL security issue
[oss-security] OpenSSL Security Advisory (corrected - added CVE-2026-22795 and CVE-2026-22796)
Tue Jan 13 13:44:01 2026
Tue Jan 27 17:19:21 2026
14.15 27th January 2026
BIND 9 [vs] …
[oss-security] ISC has disclosed one vulnerability in BIND 9 (CVE-2025-13878)
Tue Jan 20 09:27:28 2026
Wed Jan 21 16:14:45 2026
1.28 21 January 2026 CVE-2025-13878
MUNGE [vs] MUNGE buffer overflow - embargo until 2026-02-10
[oss-security] CVE-2026-25506: MUNGE 0.5-0.5.17 buffer overflow allowing key leakage
Wed Feb 04 00:30:33 2026
Tue Feb 10 18:33:01 2026
6.75 2026-02-10 18:00 UTC (Tue, 10:00 PST) CVE-2026-25506
MIT/Heimdal Kerberos [vs] Critical Kerberos Credential Theft (ADV-2026-005)
[oss-security] MIT/Heimdal Kerberos credentials cache type FILE risks
Thu Feb 05 09:24:27 2026
Thu Feb 19 01:15:03 2026
13.66 2026-02-18 ADV-2026-005
OpenStack [vs] …
[oss-security] [OSSA-2026-002] OpenStack Nova: calls qemu-img without format restrictions for resize (CVE-2026-24708)
Thu Feb 05 21:18:36 2026
Tue Feb 17 15:01:45 2026
11.74 2026-02-17 1500UTC CVE-2026-24708
Linux [vs-plain] Multiple vulnerabilities in AppArmor
[oss-security] Re: Multiple vulnerabilities in AppArmor
Thu Feb 26 18:01:06 2026
Thu Mar 12 21:34:11 2026
14.15 Tuesday, March 3, 17:00 UTC
when the patches are published upstream in Linus's tree, in a few days and definitely before the maximum 14-day embargo
will almost certainly be published upstream in Linus's tree on Tuesday, March 10
wait until the patches appear in Linus's tree, even if the maximum 14-day embargo is slightly exceeded
OpenSSH GSSAPI patch [vs-plain] OpenSSH GSSAPI patch issue
[oss-security] OpenSSH GSSAPI keyex patch issue
Thu Mar 05 14:03:20 2026
Thu Mar 12 18:03:39 2026
7.17 2026-03-12 18:00:00 UTC CVE-2026-3497
OpenStack Glance [vs] Vulnerability in OpenStack Glance (CVE-pending)
[oss-security] [OSSA-2026-004] Glance: Server-Side Request Forgery (SSRF) vulnerabilities in OpenStack Glance image import functionality (CVE-2026-pending)
Thu Mar 05 20:09:33 2026
Thu Mar 19 15:21:06 2026
13.80 2026-03-19, 1500UTC OSSA-2026-004
curl [vs-plain] : pre-notification curl CVE-2026-1965 (1/3)
[oss-security] [ADVISORY] curl: CVE-2026-1965: bad reuse of HTTP Negotiate connection
https://github.com/curl/curl/pull/20534
Sun Mar 08 09:32:08 2026
Wed Mar 11 06:54:50 2026
2.89 March 11, this coming Wednesday CVE-2026-1965
curl [vs-plain] : pre-notification curl CVE-2026-3783 (2/3)
[oss-security] [ADVISORY] curl: CVE-2026-3783: token leak with redirect and netrc
https://github.com/curl/curl/pull/20843
Sun Mar 08 09:32:12 2026
Wed Mar 11 06:54:55 2026
2.89 March 11, this coming Wednesday CVE-2026-3783
curl [vs-plain] : pre-notification curl CVE-2026-3784 (3/3)
[oss-security] [ADVISORY] curl: CVE-2026-3784: wrong proxy connection reuse with credentials
https://github.com/curl/curl/pull/20837
Sun Mar 08 09:32:22 2026
Wed Mar 11 06:55:00 2026
2.89 March 11, this coming Wednesday CVE-2026-3784
curl [vs-plain] : pre-notification curl CVE-2026-3805 (4/3)
[oss-security] [ADVISORY] curl: CVE-2026-3805: use after free in SMB connection reuse
https://github.com/curl/curl/pull/20854
Sun Mar 08 21:56:29 2026
Wed Mar 11 06:55:03 2026
2.37 March 11th 2026 CVE-2026-3805
Linux [vs] …
[oss-security] KVM shadow EPT stale rmap use-after-free
Tue Mar 10 10:33:59 2026
Mon Mar 30 14:41:08 2026
20.17 Sunday March 29, 2026, 16:00 UTC
snapd [vs] LPE in snapd
[oss-security] snap-confine + systemd-tmpfiles = root (CVE-2026-3888)
Thu Mar 12 11:08:29 2026
Tue Mar 17 19:33:32 2026
5.35 2026-03-17 14:00:00 UTC CVE-2026-3888
Linux [vs-plain] Vulnerability Report: KTLS + sockmap “Reverse Order” Use-After-Free / Data Corruption
[oss-security] Linux kernel: KTLS + sockmap "Reverse Order" Use-After-Free / Data Corruption
Wed Mar 18 11:54:54 2026
Thu May 07 04:30:00 2026
49.69 March 31st
Dovecot [vs] Dovecot Security Advisory 2026-01
[oss-security] Dovecot Security Advisory OXDC-2026-0001
Mon Mar 23 14:57:55 2026
Fri Mar 27 14:48:06 2026
3.99 27th of March CVE-2025-30189
CVE-2025-59028
CVE-2025-59032
CVE-2025-59031
CVE-2026-0394
CVE-2026-27860
CVE-2026-24031
CVE-2026-27859
CVE-2026-27857
CVE-2026-27858
CVE-2026-27856
CVE-2026-27855
Kea [vs] …
[oss-security] ISC has disclosed one vulnerability in Kea (CVE-2026-3608)
Tue Mar 24 09:16:10 2026
Wed Mar 25 15:16:52 2026
1.25 25 March 2026 CVE-2026-3608
BIND 9 [vs] …
[oss-security] ISC has disclosed four vulnerabilities in BIND 9 (CVE-2026-1519, CVE-2026-3104, CVE-2026-3119, CVE-2026-3591)
Tue Mar 24 12:36:27 2026
Wed Mar 25 15:16:57 2026
1.11 25 March 2026 CVE-2026-1519
CVE-2026-3104
CVE-2026-3119
CVE-2026-3591
OpenSSL [vs-plain] Embargoed OpenSSL security issue
[oss-security] OpenSSL Security Advisory
Tue Mar 24 15:39:27 2026
Tue Apr 07 16:37:00 2026
14.04 7th April 2026 CVE-2026-31790
CVE-2026-28386
CVE-2026-28387
CVE-2026-28388
CVE-2026-28389
CVE-2026-28390
CVE-2026-31789
OpenStack Keystone [vs-plain] Vulnerability in OpenStack Keystone (CVE-2026-33551)
[oss-security] [OSSA-2026-005] Keystone: Restricted application credentials can create EC2 credentials (CVE-2026-33551)
Tue Mar 24 19:28:14 2026
Tue Apr 07 17:43:25 2026
13.93 2026-04-07, 1500UTC CVE-2026-33551
LiteLLM [vs] …
[oss-security] X41 Advisory X41-2026-001: Guardrail Sandbox Escape in LiteLLM
Wed Mar 25 14:19:55 2026
Thu Apr 09 00:09:16 2026
14.41 as fast as possible x41-2026-001
OVN [vs-plain] CVE-2026-5367: Heap Over-Read in ICMP Error Response Generation
[oss-security] [ADVISORY] CVE-2026-5265: Heap Over-Read in ICMP Error Response Generation
Tue Apr 07 08:04:14 2026
Mon Apr 20 15:51:53 2026
13.32 13-Apr-2026
20-Apr-2026
CVE-2026-5265
OVN [vs-plain] CVE-2026-5367: Heap over-read in OVN DHCPv6 Client ID processing
[oss-security] [ADVISORY] CVE-2026-5367: Heap over-read in OVN DHCPv6 Client ID processing
Tue Apr 07 08:04:18 2026
Mon Apr 20 15:52:03 2026
13.32 13-Apr-2026
20-Apr-2026
CVE-2026-5367
X.Org X server and Xwayland [vs-plain] Embargoed X.Org Security Advisory: Multiple security issues in X.Org X server and Xwayland for 2026-04-14
[oss-security] Fwd: X.Org Security Advisory: multiple security issues X.Org X server and Xwayland
Tue Apr 07 08:20:45 2026
Tue Apr 14 15:38:28 2026
7.30 2026-04-14 at 13:00 UTC CVE-2026-33999
CVE-2026-34000
CVE-2026-34001
CVE-2026-34002
CVE-2026-34003
GNU sed [vs-plain] GNU sed: CVE-2026-5958: TOCTOU race in sed -i –follow-symlinks
[oss-security] CVE-2026-5958: GNU sed: TOCTOU race in sed -i --follow-symlinks
https://savannah.gnu.org/news/?id=10885
Sat Apr 11 01:40:42 2026
Wed May 13 01:14:29 2026
Wed Apr 22 02:00:45 2026
31.98
11.01
2026-04-19
the 20th
CVE-2026-5958
libXpm [vs-plain] Embargoed X.Org Security Advisory: Security issue in libXpm for 2026-04-21
[oss-security] Fwd: X.Org Security Advisory: CVE-2026-4367: libXpm Out-of-bounds read in xpmNextWord()
Tue Apr 14 17:09:39 2026
Tue Apr 21 16:30:10 2026
6.97 2026-04-21 at 13:00 UTC CVE-2026-4367
ntfs-3g [vs] …
[oss-security] CVE-2026-40706: ntfs-3g 2022.10.3: Heap buffer overflow
Thu Apr 16 10:27:32 2026
Tue Apr 21 16:30:37 2026
5.25 April 21st (2026-04-21) 12:00 UTC CVE-2026-40706
GHSA-4cwv-5285-63v9
Kata Containers [vs-plain] Vulnerability in Kata Containers (CVE Requested)
[oss-security] CVE-2026-41326: Kata Containers: CopyFile Policy Subversion via Symlinks
https://github.com/kata-containers/kata-containers/security/advisories/GHSA-q49m-57vm-c8cc
Thu Apr 16 13:42:39 2026
Wed May 13 01:31:41 2026
Wed Apr 22 19:55:00 2026
26.49
6.26
2026-04-22, 1800 UTC CVE-2026-41326
PackageKit [vs] …
[oss-security] CVE-2026-41651: TOCTOU vulnerability in PackageKit <= 1.3.4 leads to local root exploit
Sun Apr 19 01:11:19 2026
Wed Apr 22 15:38:54 2026
3.60 next Wednesday (22.04.2026)
22.04.2026, after 12:00 CEST (12:00 PM, 12:00 24h format)
CVE-2026-41651
curl [vs-plain] : pre-notification curl CVE-2026-4873 (1/6)
[oss-security] [ADVISORY] curl: CVE-2026-4873: connection reuse ignores TLS requirement
https://github.com/curl/curl/commit/507e7be573b0a76fca597b75
Thu Apr 23 06:08:11 2026
Wed Apr 29 06:01:05 2026
6.00 April 29 CVE-2026-4873
curl [vs-plain] : pre-notification curl CVE-2026-5545 (2/6)
[oss-security] [ADVISORY] curl: CVE-2026-5545: wrong reuse of HTTP Negotiate connection
https://github.com/curl/curl/commit/33e43985b8f3b9e6669
Thu Apr 23 06:08:16 2026
Wed Apr 29 06:01:12 2026
6.00 April 29 CVE-2026-5545
curl [vs-plain] : pre-notification curl CVE-2026-5773 (3/6)
[oss-security] [ADVISORY] curl: CVE-2026-5773: wrong reuse of SMB connection
https://github.com/curl/curl/commit/74a169575d6412d
Thu Apr 23 06:08:24 2026
Wed Apr 29 06:01:18 2026
6.00 April 29 CVE-2026-5773
curl [vs-plain] : pre-notification curl CVE-2026-6253 (4/6)
[oss-security] [ADVISORY] curl: CVE-2026-6253: proxy credentials leak over redirect-to proxy
https://github.com/curl/curl/commit/188c2f166a20fa97c2325
Thu Apr 23 06:08:31 2026
Wed Apr 29 06:01:23 2026
6.00 April 29 CVE-2026-6253
curl [vs-plain] : pre-notification curl CVE-2026-6276 (5/6)
[oss-security] [ADVISORY] curl: CVE-2026-6276: stale custom cookie host causes cookie leak
https://github.com/curl/curl/commit/3a19987a87f393d9394fe5ac
Thu Apr 23 06:08:39 2026
Wed Apr 29 06:01:27 2026
6.00 April 29 CVE-2026-6276
curl [vs-plain] : pre-notification curl CVE-2026-6429 (6/6)
[oss-security] [ADVISORY] curl: CVE-2026-6429: netrc credential leak with reused proxy connection
https://github.com/curl/curl/commit/b4024bf808bd558026fdc6
Thu Apr 23 06:08:46 2026
Wed Apr 29 06:01:19 2026
5.99 April 29 CVE-2026-6429
Exim [vs-plain] EXIM-Security-2026-04-24
[oss-security] Exim 4.99.2 fixes 4 CVEs
Fri Apr 24 15:09:46 2026
Thu Apr 30 18:21:42 2026
6.13 next Wednesday, 2026-04-29T12:00:00+0000 CVE-2026-40684
CVE-2026-40685
CVE-2026-40686
CVE-2026-40687
OpenStack Cyborg [vs] …
[oss-security] [OSSA-2026-011] OpenStack Cyborg: Multiple access control vulnerabilities in Cyborg accelerator management (CVE-2026-40213, CVE-2026-40214)
Thu Apr 30 15:02:08 2026
Thu May 07 18:27:34 2026
7.14 2026-05-07, 1500UTC CVE-2026-40213
CVE-2026-40214

Source input data

These files were manually created based on review of the e-mail threads and external resources referenced from there. They were processed with this Perl script to produce the tables above. You should be able to reproduce that.

mailing-lists/distros/stats/2026.txt · Last modified: 2026/05/13 04:18 by solar
 
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