CVE-2026-49147

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-08. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from filenames in several output modes.

When ack prints a filename whose basename contains terminal control bytes such as ANSI escape sequences, those bytes reach the terminal unchanged. Version 3.10.0 added a _safe_filename helper that sanitises the filenames printed by -f, -g, the colored match heading, and per-match lines, but the --show-types, -l/-L, and -c paths still emit the raw filename.

A file whose name embeds cursor-movement or color escapes can overwrite or recolor earlier terminal output, or be passed unchanged to a downstream consumer.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

July 8, 2026

Last Modified

July 8, 2026

Advisory Details (1)

Auto-updated Jul 8, 2026
No patch confirmed yet.
generic

Client Challenge

https://metacpan.org/release/PETDANCE/ack-v3.10.0/source/Changes

Vendor Advisories for CVE-2026-49147(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(5 across 5 ecosystems)
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
ack—3.10.0-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
ack3.4.0-1, 3.5.0-1, 3.6.0-1, 3.7.0-1, 3.8.1-1——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
ack3.6.0-1, 3.7.0-1, 3.8.1-1——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
ack3.8.1-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
ack3.8.1-1——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 115× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 156 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-49147?
CVE-2026-49147 is a high vulnerability published on July 8, 2026. App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from filenames in several output modes. When ack prints a filename whose basename contains terminal control bytes such as ANSI escape sequences, those bytes reach the terminal unchanged. Version 3.10.0 added a…
When was CVE-2026-49147 disclosed?
CVE-2026-49147 was first published in the National Vulnerability Database on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49147 actively exploited?
CVE-2026-49147 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 60.2% of all scored CVEs.
What is the CVSS score of CVE-2026-49147?
CVE-2026-49147 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-49147?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49147, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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