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: 0.3%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
0.3%
EPSS %ILE
20th
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
0.3% 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, and whom BOD 26-04 binds: 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.

The score's inputs: 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 29, 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:17919704842026-10-14redhat
redhatcert-manager/cert-manager-operator-bundle:17919662592026-10-14redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17914597112026-10-13redhat
redhatrhaii/vllm-gaudi-rhel9:17914271822026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17917882872026-10-13redhat
redhatrhaii/vllm-cpu-rhel9:17914736142026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17914597592026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17913710692026-10-13redhat
redhatrhaii/model-opt-cuda-rhel9:17918038212026-10-13redhat
redhatrhaii/vllm-cuda-rhel9:17914736312026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17890290762026-10-13redhat
redhatrhaii/vllm-spyre-rhel9:17918183572026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17913783952026-10-13redhat
redhatrhaii/vllm-rocm-rhel9:17914258692026-10-13redhat
redhatrhai/base-image-cuda-12.9-rhel9:17912322572026-10-12redhat
redhatrhai/base-image-cuda-13.0-rhel9:17912318202026-10-12redhat
redhatcostmanagement/costmanagement-ui-rhel10:17914608512026-10-08redhat
redhatrhai/base-image-rocm-7.14-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-cuda-13.0-rhel9:17907036452026-10-05redhat
redhatrhai/base-image-rubin-rhel9:17907037072026-10-05redhat
redhatrhai/base-image-neuron-rhel9:17907035572026-10-05redhat
redhatrhai/base-image-spyre-rhel9:17907036302026-10-05redhat
redhatrhai/base-image-tpu-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-cuda-12.9-rhel9:17907037062026-10-05redhat
redhatrhai/base-image-cpu-rhel9:17907036562026-10-05redhat
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
redhatrhai/base-image-rocm-rhel9:17907035062026-10-01redhat

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 16× in last 7d / 100× 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 407 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 307 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

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

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 _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…
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 29, 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 0.3% probability of exploitation in the next 30 days (20th 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-16118

Explore →

Is Your Infrastructure Affected by CVE-2026-16118?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.