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rustls before 0.23.46 Denial of Service via Brotli Certificate Decompression

No KEV listing collectedCVSS 3.7Fix not stated

Assessment

Severity
Moderate
CVSS base score
3.7
Impact
Not stated
Exploitation detected
Unknown: not stated by MSRC
Exploitability
Not assessed
Publicly disclosed
Unknown: not stated by MSRC
EPSS · 30-day forecast
No EPSS score collected
Customer action
Required: follow the MSRC remediation guidance
More details
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Public detection template
No Nuclei template is listed in the current collected catalog
Component
Mariner
Weakness
CWE-770: Allocation of Resources Without Limits or Throttling
Issued by
VulnCheck
Published
11 Nov 2026 · November 2026
Last revised
13 Nov 2026Information published.
CVSS 3.1 base metricsRed raises the risk · green lowers it
Attack vector
NetworkAV:N
Attack complexity
HighAC:H
Privileges required
NonePR:N
User interaction
NoneUI:N
Scope
UnchangedS:U
Confidentiality
NoneC:N
Integrity
NoneI:N
Availability
LowA:L

Updates that fix it

0 KBs

No KB listed

No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.

Affected products

Open Source Software
8 affected products
  • azl3 kata-containers 4.1.0.kata1-2 on Azure Linux 3.0
  • azl3 kata-containers 4.1.0.kata2-1 on Azure Linux 3.0
  • azl3 kata-containers-cc 3.15.0.aks0-23 on Azure Linux 3.0
  • azl3 kata-containers-cc 3.15.0.aks0-24 on Azure Linux 3.0
  • azl3 rust 1.75.0-31 on Azure Linux 3.0
  • azl3 rust 1.98.1-1 on Azure Linux 3.0
  • azl3 rust-afterburn 5.8.2-2 on Azure Linux 3.0
  • azl4 rpm-ostree 2026.1-7.azl4 on Azure Linux 4.0

What changed

  1. Affected products: azl3 kata-containers 4.1.0.kata1-2 on Azure Linux 3.0, azl3 kata-containers-cc 3.15.0.aks0-23 on Azure Linux 3.0, azl3 rust 1.75.0-31 on Azure Linux 3.0, azl3 rust 1.98.1-1 on Azure Linux 3.0, azl3 rust-afterburn 5.8.2-2 on Azure Linux 3.0 → azl3 kata-containers 4.1.0.kata1-2 on Azure Linux 3.0, azl3 kata-containers 4.1.0.kata2-1 on Azure Linux 3.0, azl3 kata-containers-cc 3.15.0.aks0-23 on Azure Linux 3.0, azl3 kata-containers-cc 3.15.0.aks0-24 on Azure Linux 3.0, azl3 rust 1.75.0-31 on Azure Linux 3.0, azl3 rust 1.98.1-1 on Azure Linux 3.0, azl3 rust-afterburn 5.8.2-2 on Azure Linux 3.0, azl4 rpm-ostree 2026.1-7.azl4 on Azure Linux 4.0
  2. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  3. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (10)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 14 Nov 2026 · 08:16:23 UTC Last revised12 Nov 2026 01:45 UTC → 13 Nov 2026 20:40 UTC
  2. 14 Nov 2026 · 08:16:23 UTC Affected productsazl3 kata-containers 4.1.0.kata1-2 on Azure Linux 3.0, azl3 kata-containers-cc 3.15.0.aks0-23 on Azure Linux 3.0, azl3 rust 1.75.0-31 on Azure Linux 3.0, azl3 rust 1.98.1-1 on Azure Linux 3.0, azl3 rust-afterburn 5.8.2-2 on Azure Linux 3.0 → azl3 kata-containers 4.1.0.kata1-2 on Azure Linux 3.0, azl3 kata-containers 4.1.0.kata2-1 on Azure Linux 3.0, azl3 kata-containers-cc 3.15.0.aks0-23 on Azure Linux 3.0, azl3 kata-containers-cc 3.15.0.aks0-24 on Azure Linux 3.0, azl3 rust 1.75.0-31 on Azure Linux 3.0, azl3 rust 1.98.1-1 on Azure Linux 3.0, azl3 rust-afterburn 5.8.2-2 on Azure Linux 3.0, azl4 rpm-ostree 2026.1-7.azl4 on Azure Linux 4.0
  3. 13 Nov 2026 · 12:10:20 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  4. 13 Nov 2026 · 12:10:20 UTC Source coverage: public-exploit-codeIncomplete → Current
  5. 13 Nov 2026 · 12:10:20 UTC Source coverage: first-epssIncomplete → Current
  6. 13 Nov 2026 · 12:10:20 UTC Source coverage: msrc-cvrfIncomplete → Current
  7. 13 Nov 2026 · 11:07:20 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  8. 13 Nov 2026 · 11:07:20 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  9. 13 Nov 2026 · 11:07:20 UTC Source coverage: first-epssCurrent → Incomplete
  10. 13 Nov 2026 · 11:07:20 UTC Source coverage: msrc-cvrfCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2026-123610. The catalog has a separate collection scope from Microsoft release records.

More advisories, affected versions and source history

Exploitation and risk

Source status

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

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Risk history

Compare earlier KEV listings and daily EPSS scores. Advisory wording and affected versions have a separate history.

When does an EPSS score appear as a change?

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Advisory history

14 saved versions

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14 Nov 2026 12:57:57 UTC

rustls before 0.23.46 contains an uncontrolled memory allocation flaw in its optional Brotli certificate decompression, which limits decompressed output size but accepts an input-selected large history window. Malicious peers can send a cer…

nvd · CVE-2026-123610 · Published

14 Nov 2026 11:58:43 UTC

rustls before 0.23.46 contains an uncontrolled memory allocation flaw in its optional Brotli certificate decompression, which limits decompressed output size but accepts an input-selected large history window. Malicious peers can send a cer…

euvd · EUVD-2026-119369 · Published

12 Nov 2026 11:56:13 UTC

rustls before 0.23.46 contains an uncontrolled memory allocation flaw in its optional Brotli certificate decompression, which limits decompressed output size but accepts an input-selected large history window. Malicious peers can send a cer…

euvd · EUVD-2026-119369 · Published

10 Nov 2026 11:25:54 UTC

rustls before 0.23.46 contains an uncontrolled memory allocation flaw in its optional Brotli certificate decompression, which limits decompressed output size but accepts an input-selected large history window. Malicious peers can send a cer…

euvd · EUVD-2026-119369 · Published

10 Nov 2026 11:25:07 UTC

rustls before 0.23.46 contains an uncontrolled memory allocation flaw in its optional Brotli certificate decompression, which limits decompressed output size but accepts an input-selected large history window. Malicious peers can send a cer…

nvd · CVE-2026-123610 · Published

9 Nov 2026 15:02:10 UTC

rustls before 0.23.46 Denial of Service via Brotli Certificate Decompression

cve-program · CVE-2026-123610 · Published

9 Nov 2026 10:04:30 UTC

Brotli certificate decompression can allocate up to 1 GiB before authentication

osv · RUSTSEC-2026-0348 · Published

8 Nov 2026 11:07:56 UTC

rustls before 0.23.46 contains an uncontrolled memory allocation flaw in its optional Brotli certificate decompression, which limits decompressed output size but accepts an input-selected large history window. Malicious peers can send a cer…

euvd · EUVD-2026-119369 · Published

8 Nov 2026 11:07:14 UTC

rustls before 0.23.46 contains an uncontrolled memory allocation flaw in its optional Brotli certificate decompression, which limits decompressed output size but accepts an input-selected large history window. Malicious peers can send a cer…

nvd · CVE-2026-123610 · Published

8 Nov 2026 11:07:08 UTC

Rustls: Brotli certificate decompression can allocate an attacker-controlled amount of memory up to 1 GiB before authentication.

osv · GHSA-h2v8-394m-p7vv · Published

8 Nov 2026 11:07:08 UTC

Brotli certificate decompression can allocate up to 1 GiB before authentication

osv · RUSTSEC-2026-0348 · Published

8 Nov 2026 03:06:35 UTC

rustls before 0.23.46 Denial of Service via Brotli Certificate Decompression

cve-program · CVE-2026-123610 · Published

27 Oct 2026 16:45:46 UTC

Rustls: Brotli certificate decompression can allocate an attacker-controlled amount of memory up to 1 GiB before authentication.

osv · GHSA-h2v8-394m-p7vv · Published

24 Oct 2026 13:19:54 UTC

Brotli certificate decompression can allocate up to 1 GiB before authentication

osv · RUSTSEC-2026-0348 · Published

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 15 Nov 00:38 UTC · 256 of 275 readable · 254 fully read · documentation 469/469 current