VulnSocial

CVE-2026-58155Disclosure(apache / traffic_server)

LOWCVSS 9.2 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch apache traffic_server systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Apache Traffic Server truncates over-long header names, allowing header aliasing, request smuggling, and policy bypass. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

apache CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-444

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • traffic_server

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-07-29); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
apache
Products
traffic_server

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-29: 1Mentions · 2026-07-30: 1Patch / Workaround · 2026-07-30: 1Technical Details · 2026-07-29: 1Technical Details · 2026-07-30: 107-2907-30
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-07-291
Disclosure1
2026-07-301
Patch1
Full discourse2 posts
  • CCB Alert@CCBalert
    Patch

    Warning: Latest patch for #Apache Traffic Server #ATS addresses 38 CVEs! Exploitation of CVEs such as #CVE-2026-58155, #CVE-2026-58156 and others could lead to #DoS attacks, HTTP request smuggling and more. More details at https://ccb.belgium.be/advisories/warning-multiple-vulnerabilities-apache-traffic-server-patch-immediately #Patch #Patch #Patch

    Post summary

    The post warns that a new Apache Traffic Server patch addresses 38 CVEs, including CVE‑2026‑58155 and CVE‑2026‑58156, which could lead to DoS and request smuggling, and provides a link to a detailed advisory.

    00000263
    7.2K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-58155 Header Truncation Vulnerability in Apache Traffic Server 8.0.0 Through 10.1.3 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-58155

    Post summary

    CVE‑2026‑58155 is a header truncation vulnerability disclosed for Apache Traffic Server 8.0.0‑10.1.3, with no PoC, exploit, patch, or active exploitation information provided.

    0000087
    4.1K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appapachetraffic_server---

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