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NVD / CVE Program· CNA redhat

CVE-2026-10028: Glib-networking: infinite loop in glib-networking gnutls backend allows remote denial of service via circular certificate chain

Noroxi assessment

Priority: Monitor (action score 17/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.18% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: azl3 glib-networking 2.78.0-1 on Azure Linux 3.0 2.78.0-2; azl3 glib-networking 2.78.0-2 on Azure Linux 3.0 2.78.0-2.

Low priority for now. Upgrade to azl3 glib-networking 2.78.0-1 on Azure Linux 3.0 2.78.0-2; azl3 glib-networking 2.78.0-2 on Azure Linux 3.0 2.78.0-2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A flaw was found in glib-networking. A remote attacker can exploit this vulnerability by presenting a specially crafted certificate chain to an application that uses glib-networking with the GnuTLS backend enabled and performs certificate verification. This crafted chain, which contains circular issuer relationships, can cause an infinite loop during certificate verification. The unbounded traversal consumes excessive CPU resources, leading to a denial of service for the affected process or worker.

MediumCVSS 4.3 · v3.1—No exploit Fix available
Published
May 28, 2026
Updated
Jul 21, 2026
EPSS
0.1% · 7th percentile

Report tools

JSON

Action score

17

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
4.3
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat Red Hat Enterprise Linux 10

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 9

    • all versionsaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12glib-networkingfrom 0—
Debian:14glib-networkingbefore 2.90.0-12.90.0-1
openSUSE:Leap 16.0glib-networkingbefore 2.80.1-160000.3.12.80.1-160000.3.1
openSUSE:Tumbleweedglib-networkingbefore 2.80.1-3.12.80.1-3.1
SUSE:Linux Enterprise Micro 5.3glib-networkingbefore 2.70.1-150400.3.3.12.70.1-150400.3.3.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7glib-networkingbefore 2.78.0-150600.3.3.12.78.0-150600.3.3.1
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5glib-networkingbefore 2.48.2-6.6.12.48.2-6.6.1
SUSE:Linux Micro 6.0glib-networkingbefore 2.76.0-4.12.76.0-4.1
SUSE:Linux Micro 6.1glib-networkingbefore 2.78.0-slfo.1.1_2.12.78.0-slfo.1.1_2.1
SUSE:Linux Micro 6.2glib-networkingbefore 2.80.1-160000.3.12.80.1-160000.3.1

Same product

red hat: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-10230Samba: command injection in wins server hook script
    52Plan
  • CVE-2026-4631Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
    44Plan
  • CVE-2026-76578Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-42015May 26, 2026 · Gnutls: gnutls: memory corruption due to off-by-one error in pkcs#12 bag handling
    21Monitor
  • ← EarlierCVE-2026-5260May 26, 2026 · Gnutls: gnutls: information disclosure via heap overread in rsa key exchange
    32Monitor
  • Later →CVE-2026-6324May 29, 2026 · Libsoup: libsoup: http request smuggling via unsigned to signed conversion error
    19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
azl3 glib-networking 2.78.0-1 on Azure Linux 3.02.78.0-2 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 glib-networking 2.78.0-2 on Azure Linux 3.02.78.0-2 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:glib-networking2.90.0-1 · Debian:14Package registry (OSV)
opensuse:glib-networking2.80.1-3.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:glib-networking2.76.0-4.1 · SUSE:Linux Micro 6.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-6461156 days apartLibcupsfilters: cups-filters: libcupsfilters: cpu exhaustion via infinite loop in cfieee1284normalizemakemodel()
    30Monitor
  • CVE-2026-411176 days apartLibarchive: infinite loop denial of service in rar5 decompression via archive_read_data() in libarchive
    30Monitor
  • CVE-2026-109832138 days apartGnome-remote-desktop: busy-wait dos in vnc tls i/o handlers (gnutls_e_again / gnutls_e_interrupted)
    30Monitor
  • CVE-2026-1425834 days apartDhcpcd: dhcpcd infinite loop and out-of-bounds read via zero-length ipv6 nd option in router advertisement handling
    26Monitor
  • CVE-2026-107168132 days apartM17n-lib: parser infinite loop on malformed utf-8 in count_utf_8_chars()
    24Monitor
  • CVE-2023-2593302 days apartKernel: ksmbd memory exhaustion denial-of-service vulnerability
    23Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
Low

Weakness class (CWE)

CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records