CVE-2016-1901

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 9.8Exploit: None knownExposed: 0

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

Integer overflow in the authenticate_post function in CGit before 0.12 allows remote attackers to have unspecified impact via a large value in the Content-Length HTTP header, which triggers a buffer overflow.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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
Severity98% × 45%
Exploitation4% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
89%
KEV
Not listed

Published

January 20, 2016

Last Modified

June 17, 2026

Advisory Details (5)

Auto-updated Aug 18, 2026
No patch confirmed yet.
generic

filter: avoid integer overflow in authenticate_post - cgit - A hyperfast web frontend for git repositories written in C.

http://git.zx2c4.com/cgit/commit/?id=4458abf64172a62b92810c2293450106e6dfc763
generic

oss-security - Re: CVE Request: CGit - Multiple vulnerabilities

http://www.openwall.com/lists/oss-security/2016/01/14/6
generic

oss-security - CVE Request: CGit - Multiple vulnerabilities

http://www.openwall.com/lists/oss-security/2016/01/14/3
generic

[SECURITY] [DSA 3545-1] cgit security update

http://www.debian.org/security/2016/dsa-3545
generic

[ANNOUNCE] CGIT v0.12 Released

http://lists.zx2c4.com/pipermail/cgit/2016-January/002817.html

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
cgit—0.11.2.git2.3.2-1.1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
cgit—0.11.2.git2.3.2-1.1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
cgit—0.11.2.git2.3.2-1.1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
cgit—0.11.2.git2.3.2-1.1—
Debian:8(1)
PackageVulnerable rangeFixed inDependents
cgit0.10.2.git2.0.1-30.10.2.git2.0.1-3+deb8u1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 25× 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 128 total refreshes for this CVE.

  1. 2026-08-19 16:59 UTCEPSS rescore
  2. 2026-08-18 13:43 UTCEPSS rescore
  3. 2026-08-17 13:42 UTCEPSS rescore
  4. 2026-08-16 14:51 UTCEPSS rescore
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  9. 2026-08-10 03:10 UTCOSV refresh
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  23. 2026-07-25 03:41 UTCOSV refresh
  24. 2026-07-23 14:14 UTCEPSS rescore
  25. 2026-07-23 01:22 UTCEG score recompute
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  1. 2026-07-22 22:01 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
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  5. 2026-07-20 17:03 UTCEPSS rescore
  6. 2026-07-19 14:27 UTCEPSS rescore
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  9. 2026-07-18 10:00 UTCEPSS rescore
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  11. 2026-07-16 16:59 UTCEPSS rescore
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  13. 2026-07-15 16:54 UTCEPSS rescore
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  17. 2026-07-13 22:26 UTCEPSS rescore
  18. 2026-07-13 06:09 UTCEPSS rescore
  19. 2026-07-12 05:43 UTCEPSS rescore
  20. 2026-07-12 05:43 UTCEPSS rescore
  21. 2026-07-11 08:23 UTCEPSS rescore
  22. 2026-07-09 19:05 UTCEPSS rescore
  23. 2026-07-08 15:10 UTCEPSS rescore
  24. 2026-07-07 22:42 UTCOSV refresh
  25. 2026-07-07 13:42 UTCEPSS rescore
  26. 2026-07-06 16:24 UTCEPSS rescore
  27. 2026-07-06 16:24 UTCEPSS rescore
  28. 2026-07-06 02:20 UTCEPSS rescore
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  30. 2026-07-05 02:27 UTCEPSS rescore
  31. 2026-07-04 06:28 UTCEPSS rescore
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  35. 2026-06-28 04:53 UTCEPSS rescore
  36. 2026-06-27 03:05 UTCEPSS rescore
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  38. 2026-06-25 13:47 UTCEPSS rescore
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  40. 2026-06-24 14:02 UTCEPSS rescore
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  42. 2026-06-23 21:30 UTCEPSS rescore
  43. 2026-06-22 14:23 UTCEPSS rescore
  44. 2026-06-21 14:54 UTCEPSS rescore
  45. 2026-06-21 14:54 UTCEPSS rescore
  46. 2026-06-21 01:57 UTCEPSS rescore
  47. 2026-06-21 01:57 UTCEPSS rescore
  48. 2026-06-19 19:23 UTCEPSS rescore
  49. 2026-06-19 19:23 UTCEPSS rescore
  50. 2026-06-19 10:25 UTCOSV refresh
  51. 2026-06-18 17:50 UTCEPSS rescore
  52. 2026-06-17 17:50 UTCEPSS rescore
  53. 2026-06-17 17:50 UTCEPSS rescore
  54. 2026-06-16 17:50 UTCEPSS rescore
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  56. 2026-06-15 17:45 UTCEPSS rescore
  57. 2026-06-13 22:57 UTCEPSS rescore
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  59. 2026-06-12 23:09 UTCEPSS rescore
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  61. 2026-06-11 13:57 UTCEPSS rescore
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  63. 2026-06-10 13:18 UTCEPSS rescore
  64. 2026-06-05 22:44 UTCEPSS rescore
  65. 2026-06-05 06:08 UTCEPSS rescore
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  67. 2026-06-04 13:10 UTCEPSS rescore
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  69. 2026-06-02 20:10 UTCEPSS rescore
  70. 2026-06-01 13:49 UTCEPSS rescore
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  72. 2026-05-31 22:28 UTCEPSS rescore
  73. 2026-05-31 22:28 UTCEPSS rescore
  74. 2026-05-31 00:14 UTCEPSS rescore
  75. 2026-05-30 19:23 UTCOSV refresh

Frequently asked(5)

What is CVE-2016-1901?
CVE-2016-1901 is a critical vulnerability published on January 20, 2016. Integer overflow in the authenticate_post function in CGit before 0.12 allows remote attackers to have unspecified impact via a large value in the Content-Length HTTP header, which triggers a buffer overflow.
When was CVE-2016-1901 disclosed?
CVE-2016-1901 was first published in the National Vulnerability Database on January 20, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-1901 actively exploited?
CVE-2016-1901 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 10.9% of all scored CVEs.
What is the CVSS score of CVE-2016-1901?
CVE-2016-1901 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2016-1901?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-1901, 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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