CVE-2026-81934Patch

HIGHCVSS 7.5 · HIGH

Exploitation observed; activity peaked at 4 mentions and remains active

Immediate actions

  • Patch affected systems immediately
  • Assume compromise if assets are exposed
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: Immediate (within 24h)

NVD description

Redis contains a use-after-free vulnerability in the 'tlsProcessPendingData()' function, which handles the TLS pending-data list if Redis is configured with TLS support. A remote, unauthenticated attacker may be able to execute arbitrary commands with the privileges of the Redis server.

7.8/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-416

Priority

HIGH

Exploitation

ACTIVE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Active exploitation appears in 2 classified signals
  • Public PoC and exploit tooling are both present
  • Patch or workaround signal is available
  • 17 mentions across 10 observed days

What's happening

  • Active exploitation reported across 2 signals
  • Exploit tool or code specified in 4 signals
  • PoC mentioned or linked in 8 signals
  • Patch or workaround mentioned in 9 signals
  • Technical details provided in 17 signals
  • Disclosure: 3 classified signals
  • Peaked 3d ago at 4 mentions (2026-09-03); latest day: 1
  • 17 total mentions across 10 days

Deep dive

Activity timeline17 mentions / 10d
01234Mentions · 2026-08-27: 3Mentions · 2026-08-28: 1Mentions · 2026-08-30: 1Mentions · 2026-08-31: 1Mentions · 2026-09-01: 2Mentions · 2026-09-02: 2Mentions · 2026-09-03: 4Mentions · 2026-09-04: 1Mentions · 2026-09-18: 1Mentions · 2026-09-22: 1PoC Mentioned / Linked · 2026-09-01: 2PoC Mentioned / Linked · 2026-09-02: 2PoC Mentioned / Linked · 2026-09-03: 3PoC Mentioned / Linked · 2026-09-18: 1Exploit Tool / Code · 2026-09-01: 1Exploit Tool / Code · 2026-09-02: 2Exploit Tool / Code · 2026-09-03: 1Active Exploitation · 2026-08-30: 1Active Exploitation · 2026-09-18: 1Patch / Workaround · 2026-08-27: 3Patch / Workaround · 2026-08-30: 1Patch / Workaround · 2026-08-31: 1Patch / Workaround · 2026-09-01: 1Patch / Workaround · 2026-09-02: 1Patch / Workaround · 2026-09-03: 1Patch / Workaround · 2026-09-22: 1Technical Details · 2026-08-27: 3Technical Details · 2026-08-28: 1Technical Details · 2026-08-30: 1Technical Details · 2026-08-31: 1Technical Details · 2026-09-01: 2Technical Details · 2026-09-02: 2Technical Details · 2026-09-03: 4Technical Details · 2026-09-04: 1Technical Details · 2026-09-18: 1Technical Details · 2026-09-22: 108-2708-2808-3008-3109-0109-0209-0309-0409-1809-22
Signal classification4 categories
Patch
635.3%
PoC
635.3%
Disclosure
317.6%
Active Exploitation
211.8%
Referenced assets8 URLs
Classification over time
DateTotalLabels
2026-08-273
Patch3
2026-08-281
Disclosure1
2026-08-301
Active Exploitation1
2026-08-311
Patch1
2026-09-012
PoC2
2026-09-022
PoC2
2026-09-034
Disclosure1Patch1PoC2
2026-09-041
Disclosure1
2026-09-181
Active Exploitation1
2026-09-221
Patch1
Full discourse17 posts
  • Hack32@Hack32_
    PoC

    CVE-2026-81934: Redis RCE PoC Exploit Now Public https://securityonline.info/redis-cve-2026-81934-rce/?utm_source=twitter&utm_medium=social_share

    Post summary

    A publicly available Proof of Concept exploit for CVE‑2026‑81934, a Redis Remote Code Execution vulnerability, has been released via a shared link, with no indications of active exploitation or remediation updates.

    284141622830.2K
    828 followersView on X
  • Daily CyberSecurity@Daily_CyberSec
    PoC

    CVE-2026-81934, a critical Redis vulnerability enabling remote code execution (CVSS 9.2), now has public PoC exploit code. Patch TLS servers now. #Redis #CVE202681934 #RCE #Vulnerability #InfoSec #UseAfterFree #TLS https://securityonline.info/redis-cve-2026-81934-rce/

    Post summary

    The tweet announces that CVE‑2026‑81934, a critical Redis RCE vulnerability (CVSS 9.2), now has public PoC exploit code and urges patching TLS servers.

    02022561
    13.0K followersView on X
  • AutoRemediate@AutoRemediate
    PoC

    CVE-2026-81934: Redis RCE PoC Exploit Now Public A critical Redis vulnerability, tracked as CVE-2026-81934, allows remote code execution on TLS-enabled servers. It carries a CVSS score of 9.2. Full technical details and working proof-of-concept exploit code are now publicly available. The bug affects Redis builds compiled with TLS support. Redis fixed it in versions 8.2.9, 8.4.6, 8.6.6, 8.8.2, and 8.10.1. The PoC targets the Redis 8.8.0 image and depends on that build’s memory layout. A public proof-of-concept now exists. Update Redis without delay. Apply the fix listed in the official Redis release notes for your branch. If you cannot patch at once, restrict which commands the default user can run. Disabling scripting or denying commands used by the trigger breaks the chain. Given the public exploit for CVE-2026-81934, treat TLS-enabled Redis servers as a priority.

    Post summary

    The text announces the public release of a working proof-of-concept exploit for CVE-2026-81934, a critical RCE in TLS-enabled Redis instances (CVSS 9.2), and urges immediate patching to specific fixed versions along with configuration workarounds.

    02030132
    8 followersView on X
  • VulnTracker@vuln_tracker
    Disclosure

    CVE-2026-81934 was published as CVSS 9.8 Critical. Redis pushed back. Score got revised to High. The bug is a use-after-free in Redis's TLS handler that can reach code execution. But exploitation requires TLS enabled, authenticated access, and precise timing. No known active exploitation. The score change is worth understanding: https://vulntracker.io/blog/redis-tls-use-after-free-cve-2026-81934 #Redis #CVE #InfoSec #CyberSecurity #VulnTracker

    Post summary

    The post reports that CVE‑2026‑81934 was downgraded from 9.8 Critical to High, describes the use‑after‑free flaw in Redis’s TLS handling and notes no known active exploitation, but offers no PoC, exploit, or patch.

    01030260
    805 followersView on X
  • VulnTracker@vuln_tracker
    PoC

    Public PoC changes the calculus on this one. CVE-2026-81934 was initially scored 9.8 Critical, then Redis got it reassessed to High because exploitation requires TLS enabled and authenticated access. With a working PoC out, the "precise timing" barrier just got a lot lower. We covered the bug, the score story, and affected versions: https://vulntracker.io/blog/redis-tls-use-after-free-cve-2026-81934

    Post summary

    A public PoC shows CVE‑2026‑81934—a use‑after‑free in Redis—has a lower attack complexity than originally thought, but there is no evidence of active exploitation or patches.

    00011400
    805 followersView on X
  • セキュリティ対策Lab@securityLab_jp
    Patch

    Redisの脆弱性 CVE-2026-81934、TLS有効環境で未認証RCEのおそれ 公開PoC確認、複数系列で修正版 https://rocket-boys.co.jp/security-measures-lab/redis-cve-2026-81934-tls-poc/ #セキュリティ対策Lab #security #securitynews #セキュリティ #脆弱性

    Post summary

    The article reports the Redis CVE‑2026‑81934 vulnerability, confirms a publicly available RCE PoC in TLS‑enabled contexts, and notes that patched versions exist across multiple series.

    01010216
    624 followersView on X
  • Vulmon@vulmoncom
    Patch

    A remote, unauthenticated attacker may execute arbitrary commands on a Redis server with TLS enabled. CVE-2026-81934 — use-after-free in tlsProcessPendingData(). Affected: Redis 8.2–8.10 branches. Fixed in 8.2.9, 8.4.6, 8.6.6, 8.8.2, and 8.10.1. https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-81934

    Post summary

    The text highlights a use‑after‑free vulnerability (CVE‑2026‑81934) that allows arbitrary command execution on Redis with TLS, specifies affected branches, and lists patched versions.

    01010190
    2.4K followersView on X
  • sunil kumawat@Sunil_kumawat17
    Patch

    Redis patched a TLS use-after-free (CVE-2026-81934). If Redis is running with TLS, upgrade. Official (Aug 28): 8.10.1, 8.8.2, 8.6.6, 8.4.6, 8.2.9, 7.4.11, 7.2.16, 6.2.24. Redis rates it High, not the public 9.8. Needs auth + specific TLS conditions. #Redis #Security

    Post summary

    Redis has patched a TLS use‑after‑free vulnerability (CVE‑2026‑81934). Users running Redis with TLS should upgrade to one of the listed versions to mitigate the high‑severity issue.

    0001094
    13 followersView on X
  • Upwind Security MDR@UpwindMDR
    Patch

    🚨Critical - Redis TLS Pending-Data Use-After-Free RCE (CVE-2026-81934) Redis TLS support hits a use-after-free in tlsProcessPendingData() while managing the TLS pending-data list; a remote unauthenticated attacker can trigger memory corruption over TLS and execute arbitrary commands as the Redis server. Non-TLS deployments are not impacted. 👉Affected: Redis with TLS enabled < 8.2.9, 8.4.x < 8.4.6, 8.6.x < 8.6.6, 8.8.x < 8.8.2, 8.10.x < 8.10.1 | Upgrade to 8.10.1

    Post summary

    CVE‑2026‑81934 is a critical TLS use‑after‑free in Redis that allows remote unauthenticated attackers to gain code execution. The advisory recommends upgrading to Redis 8.10.1 or later to patch the vulnerability.

    00010141
    297 followersView on X
  • Nishanth@Nishanth_KJ
    Patch

    Redis has RCE vectors via TLS pending-data list UAF (CVE-2026-81934). Patching is urgent. How do you manage zero downtime rolling restarts when an in-memory store is involved? #Redis #RCE #TLS #Database

    Post summary

    The tweet discloses a Redis RCE vulnerability (CVE-2026-81934) via TLS pending-data list UAF, stresses the urgency of patching, and asks about zero-downtime rolling restarts, without providing PoC or exploit details.

    0000042
    65 followersView on X
  • Hephaestvs@Vulcanux_
    Active Exploitation

    csirt_it: ‼️ #Redis: rilevato #PoC in rete per la CVE-2026-81934 Rischio: 🔴 Tipologia: 🔸 Arbitrary Code Execution 🔸 Denial of Service 🔗 https://www.acn.gov.it/portale/w/redis-poc-pubblico-e-sfruttamento-attivo-in-rete-della-cve-2026-81934 ⚠️ Importante mantenere aggiornati i sistemi https://t.co/Ist65I3MYE

    Post summary

    The tweet reports active exploitation of CVE-2026-81934 in the wild, citing a PoC detection and linking to further details, while highlighting risks of arbitrary code execution and denial of service.

    0000040
    636 followersView on X
  • ケイ | IT・セキュリティ系副業Webライター@Teeeda_worker
    Disclosure

    【緊急】RedisにCVSS 9.8、認証不要RCEの可能性 https://www.cybernote.click/2026/08/28/redis-cve-2026-81934-tls-use-after-free-rce/ #IT #Security #cybersecurity

    Post summary

    The post alerts to a high‑severity Redis vulnerability (CVE‑2026‑81934) with potential unauthenticated RCE, but lacks details on PoC, exploit code, or fixes, and does not report active exploitation.

    0000031
    206 followersView on X
  • まえすとろ@maestroshinichi
    PoC

    こいつはちょっと影響ありそうだ https://rocket-boys.co.jp/security-measures-lab/redis-cve-2026-81934-tls-poc/

    Post summary

    The post advertises a PoC for the Redis CVE‑2026‑81934 TLS issue, mentioning the vulnerability details and providing a link to the code, but it does not discuss active exploitation, patches, or false positives.

    0000059
    1.0K followersView on X
  • moton@moton
    PoC

    CVE-2026-81934: Redis RCE PoC Exploit Now Public - https://securityonline.info/redis-cve-2026-81934-rce/

    Post summary

    A PoC exploit for Redis CVE‑2026‑81934 is publicly available, confirming a remote code execution flaw; however, there is no evidence of active exploitation or a patch yet.

    00000130
    755 followersView on X
  • 𝔸𝕟𝕠𝕟𝕪𝕞𝕠𝕦𝕤 ℍ𝕒𝕔𝕜𝕥𝕚𝕧𝕚𝕤𝕥☭⃠🅇@YourAnon_irc
    Active Exploitation

    Recent RCE in Redis TLS (CVE-2026-81934) exposes data privacy. OpenSSL QUIC (CVE-2026-18798) faces DoS. PaperCut (CVE-2026-81578) RCE actively exploited, threatening backend integrity. Patch now! #Cybersecurity #News #Vulnerabilities

    Post summary

    The post reports active exploitation of CVE‑2026‑81578 (PaperCut RCE), notes additional RCE and DoS issues in Redis TLS and OpenSSL QUIC, and urges immediate patching.

    0000082
    17 followersView on X
  • ケイ | IT・セキュリティ系副業Webライター@Teeeda_worker
    Disclosure

    【緊急】RedisにCVSS 9.8、認証不要RCEの可能性 https://www.cybernote.click/2026/08/28/redis-cve-2026-81934-tls-use-after-free-rce/ #IT #Security #cybersecurity

    Post summary

    The post alerts about a Redis vulnerability (CVE-2026-81934) with a high CVSS score (9.8) and potential authentication‑independent RCE, but it does not provide PoC, exploit code, or patch information.

    0000060
    203 followersView on X
  • HOL@HashgraphOnline
    Patch

    Fix: upgrade to 8.2.9, 8.4.6, 8.6.6, 8.8.2, or 8.10.1. CVE-2026-81934. https://hol.org/blog/cve-2026-81934-redis-tls-pending-list-use-after-free

    Post summary

    The advisory lists specific Redis versions that fix CVE‑2026‑81934, a use‑after‑free vulnerability affecting the TLS pending list, and directs users to upgrade.

    00000161
    18.8K followersView on X

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