CVE-2026-16118 (GCVE-0-2026-16118)
Vulnerability from cvelistv5 – Published: 2026-07-17 19:44 – Updated: 2026-09-30 10:23
VLAI
EPSS
VEX
Title
Xdgmime: heap-based buffer overflow in _xdg_mime_magic_parse_magic_line() in xdgmimemagic.c
Summary
A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g_content_type_guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption.
Severity
7.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 18:18 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
19 references
Impacted products
25 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| xdg | xdgmime | guessed | ||
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:2.80.4-12.el10_2.22 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
||
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:2.80.4-4.el10_0.18 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
||
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.56.4-178.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::crb cpe:/o:redhat:enterprise_linux:8::baseos |
||
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.68.4-19.el9_8.10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/o:redhat:enterprise_linux:9::baseos |
||
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:2.68.4-7.el9_2.8 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2::appstream cpe:/o:redhat:rhel_e4s:9.2::baseos |
||
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions |
Unaffected:
0:2.68.4-14.el9_4.9 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.4::appstream cpe:/o:redhat:rhel_e4s:9.4::baseos |
||
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:2.68.4-16.el9_6.8 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6::appstream cpe:/a:redhat:rhel_eus:9.6::crb cpe:/o:redhat:rhel_eus:9.6::baseos |
||
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 |
Unaffected:
1790223279 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.20::el9 |
||
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 |
Unaffected:
1790223719 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.20::el9 |
||
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 |
Unaffected:
1790272426 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.20::el9 |
||
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 |
Unaffected:
1790589998 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.20::el9 |
||
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 |
Unaffected:
1790589912 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.20::el9 |
||
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 |
Unaffected:
1790589914 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.20::el9 |
||
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 |
Unaffected:
1790589855 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.20::el9 |
||
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 |
Unaffected:
1790598593 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.20::el9 |
||
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1790621714 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
||
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1789479916 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
||
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1789479900 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
||
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1789479891 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
||
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1789482961 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
||
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1789478095 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
||
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
||
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
||
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
Date Public
2026-07-07 00:00
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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