CVE-2026-41989

MEDIUMPre-NVD 6.76.7
EchelonGraph scoreMEDIUM confidence

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

Score 6.7 from GitHub Security Advisory published 2026-04-23. A secondary CVSS source baseline 6.7; 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 week
6.7EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.7Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.

CVSS v3
6.7
EG Score
6.7MEDIUMmedium confidence
EG Risk
30
EG Risk 30/100

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)
Severity67% × 45%
Impact severity (EG Severity): CVSS 6.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (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
8th
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 (6.7): severity, escalated by confirmed exploitation. This CVE's 6.7 is its impact severity (EG Severity), not escalated.

EG Severity
6.7 MEDIUMCVSS-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 (model v2026.06.15, score date 2026-10-17). 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 every mission impact level.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 every mission impact level.

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

Exploitation none (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

April 23, 2026

Last Modified

October 15, 2026

Advisory Details (3)

Auto-updated Jun 14, 2026
Patch available.
Web page

oss-security - Libgcrypt security releases 1.12.2, 1.11.3, 1.10.x

https://www.openwall.com/lists/oss-security/2026/04/21/1
Web page

[Announce] [Security fixes] Libgcrypt 1.12.2, 1.11.3, 1.10.x released

https://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000503.html
Web page

⚓ T8211 Libgcrypt ECDH buffer overwrite with zeroes

https://dev.gnupg.org/T8211

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcert-manager/jetstack-cert-manager-rhel9:17914597112026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17914597592026-10-13redhat
redhatrhaii/vllm-gaudi-rhel9:17914271822026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17917882872026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17913783952026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17913710692026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17890290762026-10-13redhat
redhatrhaii/vllm-spyre-rhel9:17918183572026-10-13redhat
redhatrhai/base-image-rocm-rhel9:17907034942026-10-01redhat
redhatrhai/base-image-cpu-rhel9:17907035902026-10-01redhat
redhatrhai/base-image-spyre-rhel9:17907035682026-10-01redhat
redhatrhai/base-image-cuda-rhel9:17907035862026-10-01redhat
redhatrhai/base-image-neuron-rhel9:17907035422026-10-01redhat
redhatrhai/base-image-tpu-rhel9:17907034972026-10-01redhat
redhatrhai/base-image-rocm-rhel9:17907035062026-10-01redhat
redhatrhai/base-image-cuda-rhel9:17902769742026-09-30redhat
redhatrhai/base-image-spyre-rhel9:17902768892026-09-30redhat
redhatrhai/base-image-cpu-rhel9:17902770452026-09-30redhat
redhatrhai/base-image-tpu-rhel9:17902768842026-09-30redhat
redhatrhai/base-image-rocm-rhel9:17902768862026-09-30redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17902232792026-09-28redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17902237192026-09-28redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17905899142026-09-28redhat
redhatcert-manager/cert-manager-operator-rhel9:17905898552026-09-28redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17905899122026-09-28redhat
redhatcert-manager/cert-manager-operator-rhel9:17902724262026-09-28redhat
redhatcert-manager/cert-manager-trust-manager-rhel9:17905985932026-09-28redhat
redhatlibgcrypt-0:1.8.5-7.el8_6.12026-08-24redhat
redhatlibgcrypt-0:1.8.5-7.el8_8.12026-08-24redhat
redhatrhui5/rhua-tp-rhel9:17872412602026-08-24redhat

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libgcrypt201.10.1-3
  • every version up to 1.10.1-3+deb12u1: fixed in 1.10.1-3+deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libgcrypt201.11.0-7
  • every version up to 1.11.0-7+deb13u1: fixed in 1.11.0-7+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libgcrypt201.11.0+git20250114-1 ... 1.12.1-2 (10 versions)
  • every version up to 1.12.2-1: fixed in 1.12.2-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 35× 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 227 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 127 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-18 03:41 UTCEG score recompute
  4. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-15 02:44 UTCEG score recompute
  8. 2026-10-15 02:44 UTCVendor advisory
  9. 2026-10-15 02:44 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  10. 2026-10-15 01:51 UTCEG score recompute
  11. 2026-10-15 01:51 UTCVendor advisory
  12. 2026-10-15 01:51 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  13. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  16. 2026-10-12 16:07 UTCEG score recompute
  17. 2026-10-11 19:49 UTCEG score recompute
  18. 2026-10-11 17:03 UTCEG score recompute
  19. 2026-10-11 14:29 UTCEG score recompute
  20. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  22. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  23. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  24. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 8th percentile
Show 75 more
  1. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  3. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  5. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  6. 2026-09-28 00:49 UTCOSV refresh
  7. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  8. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  16. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  18. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  19. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  20. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  21. 2026-09-08 09:05 UTCEG score recompute
  22. 2026-09-08 09:05 UTCVendor advisory
  23. 2026-09-08 09:05 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  24. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  25. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  26. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  27. 2026-09-04 03:59 UTCOSV refresh
  28. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  29. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  30. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  31. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  32. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  33. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  34. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  35. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  36. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  37. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  38. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  39. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  40. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  41. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  42. 2026-08-17 14:59 UTCEG score recompute
  43. 2026-08-17 14:59 UTCVendor advisory
  44. 2026-08-17 14:59 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  45. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  46. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  47. 2026-08-16 05:55 UTCEG score recompute
  48. 2026-08-16 05:55 UTCVendor advisory
  49. 2026-08-16 05:55 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  50. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  51. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  52. 2026-08-14 04:15 UTCEG score recompute
  53. 2026-08-14 04:15 UTCVendor advisory
  54. 2026-08-14 04:15 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  55. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  56. 2026-08-12 17:59 UTCEG score recompute
  57. 2026-08-12 17:59 UTCVendor advisory
  58. 2026-08-12 17:59 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  59. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  60. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  61. 2026-08-11 06:16 UTCEG score recompute
  62. 2026-08-11 06:16 UTCVendor advisory
  63. 2026-08-11 06:16 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  64. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  65. 2026-08-10 04:51 UTCEG score recompute
  66. 2026-08-10 04:51 UTCVendor advisory
  67. 2026-08-10 04:51 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  68. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  69. 2026-08-09 03:26 UTCEG score recompute
  70. 2026-08-09 03:26 UTCVendor advisory
  71. 2026-08-09 03:26 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7
  72. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  73. 2026-08-07 12:42 UTCEG score recompute
  74. 2026-08-07 12:42 UTCVendor advisory
  75. 2026-08-07 12:42 UTCGHSA enrichmentGHSA-wrv8-79m2-qg24 · GitHub CVSS 6.7

Frequently asked(5)

What is CVE-2026-41989?
CVE-2026-41989 is a medium-severity vulnerability; its CVE record was published on April 23, 2026. Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcrypkdecrypt.
When was the CVE record for CVE-2026-41989 published?
The CVE record for CVE-2026-41989 was published on April 23, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 15, 2026; the record at its source may have been updated since.
Is CVE-2026-41989 actively exploited?
CVE-2026-41989 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-41989?
CVE-2026-41989 has a CVSS base score of 6.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-41989?
A fix for CVE-2026-41989 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-41989 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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