CVE-2026-16118

HIGHPre-NVD 7.17.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-17. A secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this weekElevated

Also known asEUVD-2026-45266 (ENISA EUVD) · GHSA-cp7g-r78m-cc2g (GitHub Security Advisories)Source: ENISA EUVD

7.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
48
EG Risk 48/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity71% × 45%
Impact severity (EG Severity): CVSS 7.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
12th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.1): severity, escalated by confirmed exploitation. This CVE's 7.1 is its impact severity (EG Severity), not escalated.

EG Severity
7.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 17, 2026

Last Modified

October 14, 2026

Advisory Details (3)

Auto-updated Jul 17, 2026
Patch available. Sources: redhat.
Web page

(#YWH-PGM9867-233) Heap Overflow on GLib through _xdg_mime_magic_parse_magic_line() in gio/xdgmime/xdgmimemagic.c via Incorrect Byte-Swap Pointer Arithmetic on MIME magic content in user-writable XDG data location (#41) · Issues · xdg / xdgmime · GitLab

https://gitlab.freedesktop.org/xdg/xdgmime/-/work_items/41
Red Hat

2501732 – (CVE-2026-16118) CVE-2026-16118 xdgmime: heap-based buffer overflow in _xdg_mime_magic_parse_magic_line() in xdgmimemagic.c

https://bugzilla.redhat.com/show_bug.cgi?id=2501732
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-16118

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcert-manager/cert-manager-operator-bundle:17919662592026-10-14redhat
redhatcert-manager/cert-manager-operator-bundle:17919704842026-10-14redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17913783952026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17914597592026-10-13redhat
redhatrhaii/model-opt-cuda-rhel9:17918038212026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17914597112026-10-13redhat
redhatrhaii/vllm-cpu-rhel9:17914736142026-10-13redhat
redhatrhaii/vllm-spyre-rhel9:17918183572026-10-13redhat
redhatrhaii/vllm-rocm-rhel9:17914258692026-10-13redhat
redhatrhaii/vllm-gaudi-rhel9:17914271822026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17890290762026-10-13redhat
redhatrhaii/vllm-cuda-rhel9:17914736312026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17917882872026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17913710692026-10-13redhat
redhatrhai/base-image-cuda-13.0-rhel9:17912318202026-10-12redhat
redhatrhai/base-image-cuda-12.9-rhel9:17912322572026-10-12redhat
redhatcostmanagement/costmanagement-ui-rhel10:17914608512026-10-08redhat
redhatrhai/base-image-rocm-7.14-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-rubin-rhel9:17907037072026-10-05redhat
redhatrhai/base-image-neuron-rhel9:17907035572026-10-05redhat
redhatrhai/base-image-cpu-rhel9:17907036562026-10-05redhat
redhatrhai/base-image-cuda-13.0-rhel9:17907036452026-10-05redhat
redhatrhai/base-image-tpu-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-cuda-12.9-rhel9:17907037062026-10-05redhat
redhatrhai/base-image-spyre-rhel9:17907036302026-10-05redhat
redhatrhai/base-image-rocm-rhel9:17907034942026-10-01redhat
redhatrhai/base-image-rocm-7.0-rhel9:17907035162026-10-01redhat
redhatrhai/base-image-cuda-13.0-rhel9:17907036012026-10-01redhat
redhatrhai/base-image-spyre-rhel9:17907035972026-10-01redhat
redhatrhai/base-image-tpu-rhel9:17907034972026-10-01redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.66.8-1 ... 2.89.3-2 (186 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.74.6-2 ... 2.90.1-2 (148 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.84.3-1 ... 2.84.4-3~deb13u4 (7 versions)
  • every version up to 2.84.4-3~deb13u5: fixed in 2.84.4-3~deb13u5
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.84.3-1 ... 2.88.3-2 (41 versions)
  • every version up to 2.88.3-3: fixed in 2.88.3-3
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 11× in last 7d / 155× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 392 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 292 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  3. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-10-25 14:47 UTCEG score recompute
  5. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  6. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  7. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  8. 2026-10-22 02:32 UTCEG score recompute
  9. 2026-10-22 02:32 UTCVendor advisory
  10. 2026-10-22 02:32 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  11. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  12. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  13. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  14. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  15. 2026-10-18 04:01 UTCEG score recompute
  16. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  18. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  19. 2026-10-14 20:32 UTCEG score recompute
  20. 2026-10-14 20:32 UTCVendor advisory
  21. 2026-10-14 20:32 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  22. 2026-10-14 19:38 UTCEG score recompute
  23. 2026-10-14 19:38 UTCVendor advisory
  24. 2026-10-14 19:38 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  25. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
Show 75 more
  1. 2026-10-14 03:29 UTCEG score recompute
  2. 2026-10-14 03:29 UTCVendor advisory
  3. 2026-10-14 03:29 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  4. 2026-10-14 03:15 UTCVendor advisory
  5. 2026-10-14 03:15 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  6. 2026-10-14 02:41 UTCEG score recompute
  7. 2026-10-14 02:41 UTCVendor advisory
  8. 2026-10-14 02:41 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  9. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  10. 2026-10-13 09:28 UTCEG score recompute
  11. 2026-10-13 09:28 UTCVendor advisory
  12. 2026-10-13 09:28 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  13. 2026-10-13 09:09 UTCEG score recompute
  14. 2026-10-13 09:09 UTCVendor advisory
  15. 2026-10-13 09:09 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  16. 2026-10-12 21:27 UTCEG score recompute
  17. 2026-10-12 21:27 UTCVendor advisory
  18. 2026-10-12 21:26 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  19. 2026-10-12 21:03 UTCEG score recompute
  20. 2026-10-12 21:03 UTCVendor advisory
  21. 2026-10-12 21:03 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  22. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  23. 2026-10-12 16:30 UTCEG score recompute
  24. 2026-10-11 20:09 UTCEG score recompute
  25. 2026-10-11 17:21 UTCEG score recompute
  26. 2026-10-11 14:54 UTCEG score recompute
  27. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  28. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  29. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  30. 2026-10-09 02:19 UTCEG score recompute
  31. 2026-10-09 02:19 UTCVendor advisory
  32. 2026-10-09 02:19 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  33. 2026-10-09 01:29 UTCEG score recompute
  34. 2026-10-09 01:29 UTCVendor advisory
  35. 2026-10-09 01:29 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  36. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  37. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  38. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  39. 2026-10-06 03:19 UTCVendor advisory
  40. 2026-10-06 03:18 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  41. 2026-10-06 03:18 UTCEG score recompute
  42. 2026-10-06 03:18 UTCVendor advisory
  43. 2026-10-06 03:18 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  44. 2026-10-06 02:35 UTCEG score recompute
  45. 2026-10-06 02:35 UTCVendor advisory
  46. 2026-10-06 02:35 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  47. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  48. 2026-10-05 15:34 UTCEG score recompute
  49. 2026-10-05 15:34 UTCVendor advisory
  50. 2026-10-05 15:34 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  51. 2026-10-05 14:32 UTCEG score recompute
  52. 2026-10-05 14:32 UTCVendor advisory
  53. 2026-10-05 14:32 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  54. 2026-10-05 11:30 UTCEG score recompute
  55. 2026-10-05 11:30 UTCVendor advisory
  56. 2026-10-05 11:30 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  57. 2026-10-05 11:02 UTCEG score recompute
  58. 2026-10-05 11:02 UTCVendor advisory
  59. 2026-10-05 11:02 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  60. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  61. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  62. 2026-10-02 03:29 UTCEG score recompute
  63. 2026-10-02 03:29 UTCVendor advisory
  64. 2026-10-02 03:29 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  65. 2026-10-02 02:40 UTCEG score recompute
  66. 2026-10-02 02:40 UTCVendor advisory
  67. 2026-10-02 02:39 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  68. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  69. 2026-10-01 18:31 UTCEG score recompute
  70. 2026-10-01 18:31 UTCVendor advisory
  71. 2026-10-01 18:31 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  72. 2026-10-01 17:21 UTCEG score recompute
  73. 2026-10-01 17:21 UTCVendor advisory
  74. 2026-10-01 17:21 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  75. 2026-10-01 13:19 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-16118?
CVE-2026-16118 is a high-severity vulnerability; its CVE record was published on July 17, 2026. A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in xdgmimemagicparsemagicline() 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 $XDGDATAHOME/mime/magic path) is parsed by an…
When was CVE-2026-16118 made public?
CVE-2026-16118 was made public on July 7, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on July 17, 2026. EchelonGraph's copy of the record carries a last-modified date of October 14, 2026; the record at its source may have been updated since.
Is CVE-2026-16118 actively exploited?
CVE-2026-16118 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-16118?
CVE-2026-16118 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-16118?
A fix for CVE-2026-16118 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-16118 are linked in the Vendor Advisories panel on this page.

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